Developing Dashboards, Views, and Apps for Splunk Web

 


Font, color, brush, shape and related palette properties

NOTE - Splunk version 4.x reached its End of Life on October 1, 2013. Please see the migration information.

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Font, color, brush, shape and related palette properties

This section covers properties for basic font, color, brush, shape, and palettes, which are used to design the appearance of the charting objects. For example, you use brushes to determine the line thickness of the lines in line charts, set up gradient fills for area charts, and paint pie chart wedges with images rather than colors.

Splunk delivers a set of pre-configured brushes, color palettes, and brush palettes with different standardized settings. You can adjust those settings or define brushes and palettes of your own and reference them.

For example, the predefined lineBrushPalette element inherits all of its properties from the brushPalette element, but the values of those properties have been set to paint a standardized line in Splunk line and area charts. The predefined areaBrushPalette element, on the other hand also inherits its properties from the brushPalette but has been designed to paint a standardized fill for area charts.

When you set up a line chart, the lineBrushPalette is associated with it by default. But what if you want to use a line brush palette with settings that are different than the standard one? You can create a new one--that you might call myLineBrushPalette--and then reference it like so:

<option name="charting.chart">line</option>
<option name="charting.chart.lineBrushPalette">@myLineBrushPalette</option>

For more information about designing custom brushes and palettes, see "Advanced charting options," in this manual.

Supported by JSChart?

It's important to note that currently none of the font, color, brush, shape, and related palette properties are supported by the JSChart module. For more information, see the "Advanced charting options" topic in this manual.

Font and color

Usage: charting.fontFace, charting.foregroundColor, and so on.

Use the font and color properties to define the baseline font and color aspects of your chart.

Examples

Setting font properties:

<option name="charting.fontFace">_sans</option>
<option name="charting.fontSize">11</option>
<option name="charting.fontColor">0x000000</option>

Setting color properties:

<option name="charting.foregroundColor">0x000000</option>
<option name="charting.backgroundColor">0xFFFFFF</option>
<option name="charting.seriesColors">[0x6CB8CA,0xFAC61D,0xD85E3D,0x956E96,
0xF7912C,0x9AC23C,0x998C55,0xDD87B0,0x5479AF,0xE0A93B,0x6B8930,0xA04558,
0xA7D4DF,0xFCDD77,0xE89E8B,0xBFA8C0,0xFABD80,0xC2DA8A,0xC2BA99,0xEBB7D0,
0x98AFCF,0xECCB89,0xA6B883,0xC68F9B,0x416E79,0x967711,0x823825,0x59425A,
0x94571A,0x5C7424,0x5C5433,0x85516A,0x324969,0x866523,0x40521D,0x602935]</option>

Note: If you want to apply static colors to specific fields we suggest you use the fieldColors property (see documentation of the fields color palette, below).

Properties

Font properties

The following properties enable you to set basic font characteristics.

Property name Value type Definition Default
fontFace string Identifies the default font for the chart. Determines the type of font used for the text. Valid values are _sans (for the default sans-serif font), _serif (for the default serif font) and _typewriter (for the default monospaced font). Additionally you can assign popular fonts by name, such as verdanna--if the font is unavailable the browser will use the machine's default font, which is usually something like Times New Roman. _sans
fontSize number Identifies the font size in pixels. For example, choose 14 to have a 14px font size. 11
fontColor number Uses a hexadecimal value to define the font color. 0x000000 (black)
Color properties

The following properties enable you to set basic color characteristics.

foregroundColor number Used to color the foreground elements that aren't fonts or chart series elements (which are colored with fontColor and seriesColors properties, respectively. Foreground elements include axis lines, grid lines, or the lines for pie chart labels. Uses a hexadecimal value to define the color. 0x000000 (black)
backgroundColor number Controls the color of the background of the flash chart area. Uses a hexadecimal value to define the color. 0xFFFFFF (white)
seriesColors array<number> Uses an array of hexadecimal values to define the colors of chart series (surrounded by brackets and separated by commas, no spaces). See the Define series colors subtopic in the Charting configurations overview for more information.

Note: The masterLegend parameter influences series color mappings made with seriesColors. For more information, see the Chart colors subtopic of the "Advanced charting options" topic, in this manual.

If you want to apply static colors to specific fields we suggest you use the fieldColors property (see documentation of the fields color palette, below).
[0x6CB8CA,0xFAC61D,0xD85E3D,0x956E96,

0xF7912C,0x9AC23C,0x998C55,0xDD87B0,
0x5479AF,0xE0A93B,0x6B8930,0xA04558,
0xA7D4DF,0xFCDD77,0xE89E8B,0xBFA8C0,
0xFABD80,0xC2DA8A,0xC2BA99,0xEBB7D0,
0x98AFCF,0xECCB89,0xA6B883,0xC68F9B,
0x416E79,0x967711,0x823825,0x59425A,
0x94571A,0x5C7424,0x5C5433,0x85516A,
0x324969,0x866523,0x40521D,0x602935]

Brush

Usage: charting.backgroundBrush.*, charting.axisLineBrush.*, and so on.

You can use brush properties to define a new brush type, or to change the defaults of an existing brush type that you're applying to a chart.

Values

The different kinds of brushes that you can apply include:

Examples

Applying the solidFill brush to the backgroundBrush brush type and setting it so that it has a solid red fill with 50% transparency:

<option name="charting.backgroundBrush">solidFill</option>
<option name="charting.backgroundBrush.color">0xFF0000</option>
<option name="charting.backgroundBrush.alpha">0.5</option>

Setting up a radial gradient fill in the background:

<option name="charting.backgroundBrush">gradientFill</option>
<option name="charting.backgroundBrush.type">radial</option>
<option name="charting.backgroundBrush.colors">[0xFF0000,0x0000FF]</option>
<option name="charting.backgroundBrush.alphas">[1,1]</option>
<option name="charting.backgroundBrush.ratios">[0,255]</option>
<option name="charting.backgroundBrush.focalPointRatio>.5</option>

Used by

The following brush types inherit their properties from brush:

  • backgroundBrush - paints the chart background

chart objects:

  • innerFillBrush - paints the inner fill of range marker charts
  • labelLineBrush - paints pie chart and ratio bar chart label lines
  • lineBrush - paints range marker and value marker chart lines
  • outerFillBrush - paints the outer fill of range marker charts

axis label objects:

  • axisBrush - paints the line that runs the length of the axis
  • majorTickBrush - paints the major tick marks along the axis
  • minorTickBrush - paints the minor tick marks along the axis

grid line objects:

  • majorLineBrush - paints the major grid lines (corresponds with major tick marks)
  • minorLineBrush - paints the minor grid lines (corresponds with minor tick marks)

Properties

Camera fill brush

The cameraFill brush paints with live video captured from a computer-mounted camera.

Property name Value type Definition Default
cameraIndex number The zero-based index of the camera to use if multiple cameras are available. auto
repeat boolean Determines whether the image should be repeated when it is tiled. Go here for more information about the repeat parameter. false
smooth boolean Determines whether the image is smoothed when it is scaled. Go here for more information about the repeat parameter. false
stretchMode string Determines how the image tile is stretched relative to the drawing bounds. Valid values are none, fill, uniform, uniformToFill, uniformToWidth and uniformToHeight. fill
alignmentX number The horizontal alignment of the image tile within the drawing bounds. Typical values are between 0 (left-aligned) and 1 (right-aligned). 0.5 (centered)
alignmentY number The vertical alignment of the image tile within the drawing bounds. Typical values are between 0 (top-aligned) and 1 (bottom-aligned). 0.5 (centered)
tileTransform matrix Defines the transformation matrix to apply to the image tile. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined. You must set this value
renderTransform matrix Defines the transformation matrix to apply to the final rendered fill. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis without spaces, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
fitToDrawing boolean Determines whether the image tile should be scaled to the drawing boundaries (true) or to the boundaries of the entire graphics area (false). false
Dashed stroke brush

The dashedStroke brush paints with dashed lines. Go here for more information about dashed stroke parameters.

dashSize number Determines the size of each dash in pixels. 4
dashSpacing number Sets the size of the spaces between each dash in pixels. 4
thickness number Determines the thickness of the stroke in pixels. A value of 0 indicates hairline thickness. 0
color number Determines the hexadecimal color of the stroke. 0x000000 (black)
alpha number Sets the alpha transparency of the stroke. Valid values are between 0 (transparent) and 1 (opaque). 1
pixelHinting boolean Indicates whether the stroke should be hinted to full pixels. false
scaleMode string Identifies the stroke scaling mode. Valid values are normal, none, horizontal, and vertical. normal
caps string Determines the type of stroke end caps to use. Valid values are none, round, and square. round
joints string Determines the type of joints to use at stroke angles. Valid values are miter, round, and bevel. round
miterLimit number Determines the limit at which miter joints are cut off. The value expresses a factor of the stroke thickness (see above). It is measured in pixels. 3
Gradient fill brush

The gradientFill brush paints fills with a color gradient. For more information about the gradient fill brush and its Flash parameters, go here.

type string Indicates the type of gradient to use. Valid values are linear (where color changes uniformly in a linear direction, vertically, horizontally, or diagonally) and radial (where where color changes in a circular fashion in all directions from a central point to the gradient edge) . linear
colors array<number> Defines the list of hexadecimal color values to use in the gradient. Must be comma-delimited and within brackets.

Note: The colors, alphas, and ratios properties are used simultaneously to define how the gradient should be drawn. If you do not give values to these properties a solid black fill will be drawn. If you define two colors values, you must also define two corresponding values each for the alphas and ratios parameters.
No default defined.
alphas array<number> Provides the list of alpha transparency values corresponding to the colors list. Valid values are between 0 (transparent) and 1 (opaque). Must be comma-delimited and within brackets.

Note: The colors, alphas, and ratios properties are used simultaneously to define how the gradient should be drawn. If you do not give values to these properties a solid black fill will be drawn. If you define two alphas values, you must also define two corresponding values each for the colors and ratios parameters.
No defaults.
ratios array<number> Provides the list of color distribution ratios corresponding to the colors list (see above). The ratios define the percentage of the gradientWidth where the color is sampled at 100%. Valid values are between 0 (left) and 255 (right). Must be comma-delimited and within brackets.

Note: The colors, alphas, and ratios properites are used simultaneously to define how the gradient should be drawn. If you do not give values to these properties a solid black fill will be drawn. If you define two ratios values, you must also define two corresponding values each for the colors and alphas parameters.
No default defined.
spreadMethod string Indicates the method to use for spreading the gradient when it is tiled. Valid values are pad (use the terminal colors of the gradient to fill the remainder of the region), reflect (reflect the gradient pattern start-to-end, end-to-start, start-to-end, and so on continuously until the region is filled), and repeat (repeat the gradient pattern start-to-end, start-to-end, start-to-end until the region is filled). pad
interpolationMethod string Determines the method to use for interpolating between the colors in the gradient. Valid values are rgb and linearRGB. rgb
focalPointRatio number Determines the location of the gradient focal point. Valid values are between -1 (left) and 1 (right). 0 (center)
gradientWidth number Determines the width of the gradient tile in pixels. 100
gradientHeight number Determines the height of the gradient tile in pixels. 100
stretchMode string Determines the manner in which the gradient tile is stretched relative to the drawing bounds. Valid values are none, fill, uniform, uniformToFill, and uniformToWidth, and uniformToHeight. fill
alignmentX number Sets the horizontal alignment of the gradient tile within the drawing bounds. Typical values are between 0 (left-aligned) and 1 (right-aligned). 0.5 (centered)
alignmentY number Sets the vertical alignment of the gradient tile within the drawing bounds. Typical values are between 0 (top-aligned) and 1 (bottom-aligned). 0.5 (centered)
tileTransform matrix Defines the transformation matrix to apply to the gradient tile. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
renderTransform matrix Defines the transformation matrix to apply to the final rendered fill. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
fitToDrawing boolean Determines whether the gradient tile should be scaled to the drawing boundaries (true) or to the boundaries of the entire graphics area (false) false
Gradient stroke brush

The gradientStroke brush paints strokes with a color gradient. For more details on the gradient stroke brush and its brush Flash parameters, go here (for information about gradients) and here (for information about line parameters).

type string Indicates the type of gradient to use. Valid values are linear (where color changes uniformly in a linear direction, vertically, horizontally, or diagonally) and radial (where where color changes in a circular fashion in all directions from a central point to the gradient edge) . linear
colors array<number> The list of hexadecimal color values to use in the gradient. Must be comma-delimited and within brackets. No default defined.
alphas array<number> The list of alpha transparency values corresponding to the colors list. Valid values are between 0 (transparent) and 1 (opaque). Must be comma-delimited and bracket-enclosed. No default defined.
ratios array<number> The list of color distribution ratios corresponding to the colors list (see above). The ratios define the percentage of the gradientWidth where the color is sampled at 100%. Valid values are between 0 (left) and 255 (right). Must be comma-delimited and bracket-enclosed. No default defined.
spreadMethod string The method to use for spreading the gradient when it is tiled. Valid values are pad (use the terminal colors of the gradient to fill the remainder of the stroke), reflect (reflect the gradient pattern start-to-end, end-to-start, start-to-end, and so on continuously), and repeat (repeat the gradient pattern start-to-end, start-to-end, start-to-end). pad
interpolationMethod string Determines the method to use for interpolating between the colors in the gradient. Valid values are rgb and linearRGB. rgb
focalPointRatio number Determines the location of the gradient focal point. Valid values are between -1 (left) and 1 (right). 0 (center)
thickness number Determines the stroke thickness in pixels. A value of 0 indicates hairline thickness. 0
pixelHinting boolean Indicates whether the stroke should be hinted to full pixels. false
scaleMode string Identifies the stroke scaling mode. Valid values are normal, none, horizontal, and vertical. normal
caps string Determines the type of caps to use at stroke ends. Valid values are none, round, and square. round
joints string Determines the type of joints to use at stroke angles. Valid values are miter, round, and bevel. round
miterLimit number Determines the limit at which miter joints are cut off. The value expresses a factor of the stroke thickness (see above). It is measured in pixels. 3
gradientWidth number Determines the width of the gradient tile in pixels. 100
gradientHeight number Determines the height of the gradient tile in pixels. 100
stretchMode string Determines the manner in which the gradient tile is stretched relative to the drawing bounds. Valid values are none, fill, uniform, uniformToFill, and uniformToWidth, and uniformToHeight. fill
alignmentX number Sets the horizontal alignment of the gradient tile within the drawing bounds. Typical values are between 0 (left-aligned) and 1 (right-aligned). 0.5 (centered)
alignmentY number Sets the vertical alignment of the gradient tile within the drawing bounds. Typical values are between 0 (top-aligned) and 1 (bottom-aligned). 0.5 (centered)
tileTransform matrix Defines the transformation matrix to apply to the gradient tile. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
renderTransform matrix Defines the transformation matrix to apply to the final rendered fill. This is represented as a comma-delimited and bracket-enclosed list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
fitToDrawing boolean Determines whether the gradient tile should be scaled to the drawing boundaries (true) or to the boundaries of the entire graphics area (false) false
Group brush

The group brush paints with a set of layered brushes simultaneously. For example, you could add outlines around the columns of a column chart by using a group brush consisting of a solidStroke brush on top of a gradientFill brush. Or you could paint with a semi-transparent gradientFill brush on top of an imageFill brush. (Note: To apply these effects to the series in a chart, however, you eventually have to use a brush palette. Depending on what your ultimate goal is, you could put a bunch of custom defined group brushes into a list brush palette, or it may be easier to define a couple of brush palettes and put them into a group brush palette.)

brushes array<brush> The list of brushes to paint with. Must be comma-delimited and bracket-enclosed. No default defined.
Image fill brush

The imageFill brush fills an area with a JPG, PNG, or GIF image file.

source string The URL of the fill image. No default defined.
repeat boolean Indicates whether the image should be repeated when tiled. Go here for more information about the repeat parameter. false
smooth boolean Indicates whether the image should be smoothed when it is scaled. Go here for more information about the smooth parameter. false
stretchMode string Determines the manner in which the image tile is stretched relative to the drawing bounds. Valid values are none, fill, uniform, uniformToFill, and uniformToWidth, and uniformToHeight. fill
alignmentX number Sets the horizontal alignment of the image tile within the drawing bounds. Typical values are between 0 (left-aligned) and 1 (right-aligned). 0.5 (centered)
alignmentY number Sets the vertical alignment of the image tile within the drawing bounds. Typical values are between 0 (top-aligned) and 1 (bottom-aligned). 0.5 (centered)
tileTransform matrix Defines the transformation matrix to apply to the image tile. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
renderTransform matrix Defines the transformation matrix to apply to the final rendered fill. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
fitToDrawing boolean Determines whether the image tile should be scaled to the drawing boundaries (true) or to the boundaries of the entire graphics area (false) false
Movie fill brush

The movieFill brush fills an area with a Flash movie (SWF).

source string The URL of the Flash movie. No default defined.
repeat boolean Indicates whether the Flash movie should be repeated when it is tiled. Go here for more information about the repeat parameter. false
smooth boolean Indicates whether the Flash movie should be smoothed when it is scaled. Go here for more information about the smooth parameter. false
stretchMode string Determines the manner in which the Flash movie tile is stretched relative to the drawing bounds. Valid values are none, fill, uniform, uniformToFill, and uniformToWidth, and uniformToHeight. fill
alignmentX number Sets the horizontal alignment of the Flash movie tile within the drawing bounds. Typical values are between 0 (left-aligned) and 1 (right-aligned). 0.5 (centered)
alignmentY number Sets the vertical alignment of the Flash movie tile within the drawing bounds. Typical values are between 0 (top-aligned) and 1 (bottom-aligned). 0.5 (centered)
tileTransform matrix Defines the transformation matrix to apply to the Flash movie tile. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
renderTransform matrix Defines the transformation matrix to apply to the final rendered fill. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
fitToDrawing boolean Determines whether the Flash movie tile should be scaled to the drawing boundaries (true) or to the boundaries of the entire graphics area (false) false
Solid fill brush

The solidFill brush fills an area with a solid color.

color number The hexadecimal color of the fill. 0x000000 (black)
alpha number The alpha transparency of the fill. Valid values are between 0 (transparent) and 1 (opaque). 1
Solid stroke brush

The solidStroke brush paints strokes with a solid color. Go here for more information about solid stroke parameters.

thickness number Sets the thickness of the stroke in pixels. A value of 0 indicates hairline thickness. 0
color number Determines the hexadecimal color of the stroke brush. 0x000000 (black)
alpha number The alpha transparency of the fill. Valid values are between 0 (transparent) and 1 (opaque). 1
pixelHinting boolean Indicates whether the stroke should be hinted to full pixels. false
scaleMode string Identifies the stroke scaling mode. Valid values are normal, none, horizontal, and vertical. normal
caps string Determines the type of stroke end caps to use. Valid values are none, round, and square. round
joints string Determines the type of joints to use at stroke angles. Valid values are miter, round, and bevel. round
miterLimit number Determines the limit at which miter joints are cut off. The value expresses a factor of the stroke thickness (see above). It is measured in pixels. 3
Video fill brush

The videoFill brush paints fills with video. It supports video files derived from the standard MPEG-4 format, including F4V, MP4, M4A, MOV, MP4V, 3GP, and 3G2 (if they contain H.264 video and/or HEAAC v2 encoded audio.

source string The URL of the video you want to paint with. A Flash Player security limitation requires static video files to be located in the same directory as the SWF file or in a subdirectory.
repeat boolean Indicates whether the video should be repeated when it is tiled. Go here for more information about the repeat parameter. false
smooth boolean Indicates whether the video should be smoothed when it is scaled. Go here for more information about the smooth parameter. false
stretchMode string Determines the manner in which the video is stretched relative to the drawing bounds. Valid values are none, fill, uniform, uniformToFill, and uniformToWidth, and uniformToHeight. fill
alignmentX number Sets the horizontal alignment of the video tile within the drawing bounds. Typical values are between 0 (left-aligned) and 1 (right-aligned). 0.5 (centered)
alignmentY number Sets the vertical alignment of the video tile within the drawing bounds. Typical values are between 0 (top-aligned) and 1 (bottom-aligned). 0.5 (centered)
tileTransform matrix Defines the transformation matrix to apply to the video tile. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
renderTransform matrix Defines the transformation matrix to apply to the final rendered video fill. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
fitToDrawing boolean Determines whether the video tile should be scaled to the drawing boundaries (true) or to the boundaries of the entire graphics area (false) false

Color palette

Usage: charting.colorPalette.*, charting.colorPaletteDark.*, and so on.

Use color palettes to control the colors used by brush palettes, which in turn are used to paint things like chart lines and series swatches in legends. For example, color palettes map colors to the series in a series index for a brush palette.

If you associate a color palette to a brush palette, then the brush palette uses it to determine the color of each brush it generates. For example, when a brush palette generates a new brush for each series in a chart (to paint a line in a line chart, fill a column in a column chart, or paint a swatch in a chart legend), it uses a color palette to determine the color of those lines, columns, and swatches.

While you can define colors at the individual brush level, this method enables you to set up one set of colors for all of the brushes used in each chart of a dashboard.

For example, a list color palette maps a series index directly to a color from a list of colors defined in the palette. By default, if the series index contains more items than the list of colors in the color palette, it is wrapped around to the beginning of the list, repeating the colors. If most of your charts present 10 series or less, then you might create a color palette with twice that number of specified colors so that colors are repeated very infrequently.

However, the list color palette can be configured to interpolate between the colors in its list, instead of wrapping, to produce a range of colors that span over the total number of series in an index. With this setup, no colors will repeat.

Values

The different kinds of color palettes that you can apply include:

  • brightness - modifies the brightness of colors generated from another color palette
  • field - provides colors from a specified field-->color map
  • list - generates brush colors from a specified list of colors
  • random</color> - generates random colors

Example

This example provides properties for a new <code>list color palette called "myColorPalette," which interpolates between red, green, and blue:

<option name="charting.myColorPalette">list</option>
<option name="charting.myColorPalette.colors">[0xFF0000,0x00FF00,0x0000FF]</option>
<option name="charting.myColorPalette.interpolate">true</option>

This example references the "myColorPalette" defined above and creates a brighter version of it called "myBriteColorPalette":

<option name="charting.myBriteColorPalette">brightness</option>
<option name="charting.myBriteColorPalette.colorPalette">@myColorPalette</option>
<option name="charting.myBriteColorPalette.brightness">0.5</option>

And finally, this example uses the fieldColors parameter of the field color palette type to map specific colors to specific fields:

<option name="charting.fieldColors">{"UserIP":0x3399CC, "Referrer_URL":0x00F66, "Browser":0xFFFF33,"SKU":0xFF0000}</option>

Note: If you want to apply static colors to specific fields we suggest you use the fieldColors property (see documentation of the fields color palette type, below). For more information about using fieldColors, see the Chart colors subtopic of the "Advanced charting options" topic, in this manual.

Used by

The following predefined palette types inherit their properties from colorPalette:

  • colorPalette - defines the standard range of colors used for series indexes in Splunk. charts.
  • colorPaletteDark - defines a range of colors that is the same as that of colorPalette, except darker.

Properties

Brightness

The brightness color palette modifies the brightness of colors generated from another color palette.

Property name Value type Definition Default
colorPalette colorPalette References the color palette to use for base color generation. Reference an existing color palette with the @ symbol: @myColorPalette No default defined. See the colorPalette element for properties and defaults.
brightness number The brightness adjustment to apply to the base color. Valid values are between -1 (darkest) and 1 (brightest). 0 (no brightness change)
Field

The field color palette provides colors from a specified color-->field map.

fieldColors map<number> The map of hexadecimal color values to use for each field. A map is a comma-delimited list of key/value pairs, enclosed in curly braces. Keys are separated from their values by a colon. Example: {key1:value1,key2:value2,…,keyN:valueN}. If a key or string value in the map contains any of these special characters - []{}(),:" - the special character should be surrounded by double quotes. Existing double quotes or backslashes should be escaped with a preceding backslash.

Note: For more information about using fieldColors, see the Chart colors subtopic of the "Advanced charting options" topic, in this manual.

No default specified.
defaultColorPalette colorPalette The color palette to use for unspecified fields. No default specified.
List

The list color palette contains the list of color values that should be applied to chart series.

colors array<number> The list of hexadecimal color values from which series colors are generated. Should be comma-delimited, bracket-enclosed, without spaces. No default defined.
interpolate boolean Determines whether Splunk should interpolate between the colors in the color list. When set to true, Splunk will assign a series index for a chart a continuous gradient of colors between each color in the list.

So if you choose red and blue for the colors list and have more than two series in your chart, the first series will be red, the last series will be blue, and the intervening series will be assigned colors on the gradient scale between red and blue. Set interpolate to false to use only the colors in the colors list without intermediate gradients, repeating colors if necessary.
false
Random

The random color palette generates random colors.

minimumColor number The minimum (darkest) hexadecimal color value to generate. 0x000000
maximumColor number The maximum (lightest) hexadecimal color value to generate 0xFFFFFF

Brush palette

Usage: charting.lineBrushPalette.*, charting.myBrushPalette.*, and so on.

Use brush palettes to map a series index to a brush type. The brush palette then generates a brush for each series in that index when Splunk draws the chart. For example, if you are using a solidStroke brush to generate a line for a line chart, you would use a solidStroke brush palette to generate a solidStroke brush, which would in turn paint a solid color for the series (as determined by the associated color palette).

Values

The different kinds of brush palettes that you can apply include:

Example

This example creates a brush palette called myBrushPalette that produces solidFill brushes for an area chart. It references a predefined color palette that is essentially a darker version of the standard palette (colorPaletteDark) and arranges for the solidFill brushes that it generates to be partially transparent.

<option name="charting.myBrushPalette">solidFill</option>
<option name="charting.myBrushPalette.colorPalette">@colorPaletteDark</option>
<option name="charting.myBrushPalette.alpha">0.6</option>

Predefined brush palettes

The following predefined brush palettes inherit their root properties from brushPalette:

  • fillBrushPalette - generates brushes for color fills in charts, such as the solidFill brush
  • lineBrushPalette - generates brushes for lines in charts, such as the solidStroke
  • barBrushPalette - generates brushes for bar charts

You can create other brush palletes of your own.

Properties

Field brush palette

The field brush palette provides brushes from a specified brush->field map.

Property name Value type Definition Default
fieldBrushes map<brush> The map of brushes to use for each field. A map is a comma-delimited list of key/value pairs, enclosed in curly braces. Keys are separated from their values by a colon. Example: {key1:value1,key2:value2,…,keyN:valueN}. If a key or string value in the map contains any of these special characters - []{}(),:" - the special character should be surrounded by double quotes. Existing double quotes or backslashes should be escaped with a preceding backslash. No default specified.
defaultBrushPalette BrushPalette No default specified.
Field image fill brush palette

The fieldImageFill brush palette generates imageFill brushes based on field name.

fieldSources map<string> The explicit map of image source URLs for each field. The final URL used for each image is sourcePath + fieldSources[field] + sourceExtension. A map is a comma-delimited list of key/value pairs, enclosed in curly braces. Keys are separated from their values by a colon. Example: {key1:value1,key2:value2,…,keyN:valueN}. If a key or string value in the map contains any of these special characters - []{}(),:" - the special character should be surrounded by double quotes. Existing double quotes or backslashes should be escaped with a preceding backslash. No default specified.
sourcePath <string> The common path shared among all image sources. This value is prepended to all source URLs. No default specified.
sourceExtension <string> The common file extension shared among all image sources. This value is appended to all source URLs. No default specified.
useFieldAsSource boolean Indicates whether to use the field name itself to construct each image source URL. When set to true, any fields that have not been assigned an image source in fieldSources will use the URL-encoded field name as the source. The final URL used for each image is sourcePath + fieldSources[field] + sourceExtension. false
repeat boolean Indicates whether to repeat the image when it is tiled. Go here for more information about the repeat parameter. false
smooth boolean Indicates whether the image should be smoothed when it is scaled. Go here for more information about the smooth parameter. false
stretchMode string Indicates how to stretch the image tile relative to the drawing bounds. Valid values are none, fill, uniform, uniformToFill, uniformToWidth and uniformToHeight. fill
alignmentX number The horizontal alignment of the image tile within the drawing bounds. Typical values are between 0 (left-aligned) and 1 (right-aligned). 0.5 (centered)
alignmentY number The vertical alignment of the image tile within the drawing bounds. Typical values are between 0 (top-aligned) and 1 (bottom-aligned). 0.5 (centered)
tileTransform matrix Defines the transformation matrix to apply to the image tile. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty). This produces a 3x3 transformation matrix object.

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
renderTransform matrix Defines the transformation matrix to apply to the final rendered fill. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty). This produces a 3x3 transformation matrix object.

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
fitToDrawing boolean Determines whether the image tile should be scaled to the drawing boundaries (true) or to the boundaries of the entire graphics area (false).
defaultBrushPalette brush palette The brush palette to use for unspecified fields when useFieldAsSource is set to false. No default specified.
Gradient fill brush palette

The gradientFill brush palette generates gradientFill brushes.

type string Indicates the type of gradient to use. Valid values are linear (where color changes uniformly in a linear direction, vertically, horizontally, or diagonally) and radial (where where color changes in a circular fashion in all directions from a central point to the gradient edge) . linear
colorPalettes array<colorPalette> The list of color palettes from which gradient colors are retrieved. Must be comma-delimited without spaces, and within brackets. No default defined. See the colorpalette element for info on parameters and defaults.
alphas array<number> The list of alpha transparency values corresponding to the colorPalettes list (see this parameter above). Valid values are between 0 (transparent) and 1 (opaque). Must be comma-delimited and bracket-enclosed. No defaults.
ratios array<number> The list of color distribution ratios corresponding to the colorPalettes list (see this parameter above). The ratios define the percentage of the gradientWidth (see below) where the color is sampled at 100%. Valid values are between 0 (left) and 255 (right). Must be comma-delimited and bracket-enclosed. No default defined.
spreadMethod string The method to use for spreading the gradient when it is tiled. Valid values are pad (use the terminal colors of the gradient to fill the remainder of the region), reflect (reflect the gradient pattern start-to-end, end-to-start, start-to-end, and so on continuously until the region is filled), and repeat (repeat the gradient pattern start-to-end, start-to-end, start-to-end until the region is filled). pad
interpolationMethod string Determines the method to use for interpolating between the colors in the gradient. Valid values are rgb and linearRGB. rgb
focalPointRatio number Determines the location of the gradient focal point. Valid values are between -1 (left) and 1 (right). 0 (center)
gradientWidth number Determines the width of the gradient tile in pixels. 100
gradientHeight number Determines the height of the gradient tile in pixels. 100
stretchMode string Determines the manner in which the gradient tile is stretched relative to the drawing bounds. Valid values are none, fill, uniform, uniformToFill, and uniformToWidth, and uniformToHeight. fill
aligmentX number Sets the horizontal alignment of the gradient tile within the drawing bounds. Typical values are between 0 (left-aligned) and 1 (right-aligned). 0.5 (centered)
alignmentY number Sets the vertical alignment of the gradient tile within the drawing bounds. Typical values are between 0 (top-aligned) and 1 (bottom-aligned). 0.5 (centered)
tileTransform matrix Defines the transformation matrix to apply to the gradient tile. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
renderTransform matrix Defines the transformation matrix to apply to the final rendered fill. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
fitToDrawing boolean Determines whether the gradient tile should be scaled to the drawing boundaries (true) or to the boundaries of the entire graphics area (false) false
Gradient stroke brush palette

The gradientStroke brush palette generates gradientStroke brushes.

type string Indicates the type of gradient to use. Valid values are linear (where color changes uniformly in a linear direction, vertically, horizontally, or diagonally) and radial (where where color changes in a circular fashion in all directions from a central point to the gradient edge) . linear
colorPalettes array<colorPalette> The list of color palettes from which gradient colors are retrieved. Should be comma-delimited and bracket-enclosed. No default defined. See the colorPalette element for parameters and defaults.
alphas array<number> The list of alpha transparency values corresponding to the colorPalettes list. Valid values are between 0 (transparent) and 1 (opaque). Should be comma-delimited and bracket-enclosed. No default defined.
ratios array<number> The list of color distribution ratios corresponding to the colorPalettes list (see above). The ratios define the percentage of the gradientWidth where the color is sampled at 100%. Valid values are between 0 (left) and 255 (right). Should be comma-delimited and bracket-enclosed. No default defined.
spreadMethod string The method to use for spreading the gradient when it is tiled. Valid values are pad (use the terminal colors of the gradient to fill the remainder of the stroke), reflect (reflect the gradient pattern start-to-end, end-to-start, start-to-end, and so on continuously), and repeat (repeat the gradient pattern start-to-end, start-to-end, start-to-end). pad
interpolationMethod string Determines the method to use for interpolating between the colors in the gradient. Valid values are rgb and linearRGB. rgb
focalPointRatio number Determines the location of the gradient focal point. Valid values are between -1 (left) and 1 (right). 0 (center)
thickness number Determines the stroke thickness in pixels. A value of 0 indicates hairline thickness. 0
pixelHinting boolean Indicates whether the stroke should be hinted to full pixels. false
scaleMode string Identifies the stroke scaling mode. Valid values are normal, none, horizontal, and vertical. normal
caps string Determines the type of caps to use at stroke ends. Valid values are none, round, and square. round
joints string Determines the type of joints to use at stroke angles. Valid values are miter, round, and bevel. round
miterLimit number Determines the limit at which miter joints are cut off. The value expresses a factor of the stroke thickness (see above). It is measured in pixels. 3
gradientWidth number Determines the width of the gradient tile in pixels. 100
gradientHeight number Determines the height of the gradient tile in pixels. 100
stretchMode string Determines the manner in which the gradient tile is stretched relative to the drawing bounds. Valid values are none, fill, uniform, uniformToFill, and uniformToWidth, and uniformToHeight. fill
aligmentX number Sets the horizontal alignment of the gradient tile within the drawing bounds. Typical values are between 0 (left-aligned) and 1 (right-aligned). 0.5 (centered)
alignmentY number Sets the vertical alignment of the gradient tile within the drawing bounds. Typical values are between 0 (top-aligned) and 1 (bottom-aligned). 0.5 (centered)
tileTransform matrix Defines the transformation matrix to apply to the gradient tile. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
renderTransform matrix Defines the transformation matrix to apply to the final rendered fill. This is represented as a comma-delimited and bracket-enclosed list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
fitToDrawing boolean Determines whether the gradient tile should be scaled to the drawing boundaries (true) or to the boundaries of the entire graphics area (false). false
Group brush palette

The group brush palette generates brushes from other brush palettes.

brushPalettes array<brushPalette> The list of brush palettes from which to generate brushes for the group. Should be comma-delimited and bracket-enclosed. No default defined. See the brushPalette element for properties and defaults.
Image fill brush palette

The imageFill brush palette generates imageFill brushes from a list of source URLs.

sources array<string> The list of image source URLs to choose from. The final URL used for each image is sourcePath+sources[i]. Should be comma-delimited and bracket-enclosed. No default specified.
sourcePath string The common filepath shared among all image sources. The sourcePath value is prepended to all source URLs. No default specified.
repeat boolean Determines whether to repeat the image when it is tiled. Go here for more information about the repeat parameter. false
smooth boolean Determines whether to smooth the image when it is scaled. false
stretchMode string The mode to use for stretching the tile relative to the drawing bounds. Valid values are none, fill, uniform, uniformToFill, uniformToWidth and uniformToHeight. fill
alignmentX number The horizontal alignment of the image tile within its drawing bounds. Typical values are between 0 (left aligned) and 1 (right aligned). 0.5 (centered)
alignmentY number Typical values are between 0 (top-aligned) and 1 (bottom-aligned). 0.5 (centered)
tileTransform matrix Defines the transformation matrix to apply to the gradient tile. This is represented as a comma-delimited list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
renderTransform matrix Defines the transformation matrix to apply to the final rendered fill. This is represented as a comma-delimited and bracket-enclosed list of six numeric values enclosed in a parenthesis, corresponding to a, b, c, d, tx, and ty respectively: (a,b,c,d,tx,ty).

The resulting transformation matrix object is a 3x3 matrix with the following contents:
[ a c tx ]
[ b d ty ]
[ 0 0 1 ]

No default defined.
fitToDrawing Boolean Determines whether the image tile should be scaled to the drawing boundaries (true) or to the boundaries of the entire graphics area (false). false
List brush palette

The list brush palette provides brushes from a specified list.

brushes array<brush> The list of brushes to choose from. Should be comma-delimitedShould be comma-delimited and bracket-enclosed. No default defined.
Solid fill brush palette

The solidFill brush palette generates solidFill brushes.

colorPalette colorPalette The color palette from which to retrieve the color of the fill. No default defined. See the colorPalette element for parameters and defaults.
alpha number Determines the alpha transparency of the fill. Valid values are between 0 (transparent) and 1 (opaque). 1
Solid stroke brush palette

The solidStroke generates solidStroke brushes.

thickness number Defines the stroke thickness in pixels. A value of 0 indicates hairline thickness. 0
colorPalette colorPalette Determines the color palette from which to retrieve the colors of the generated solid stroke brushes. 0x000000 (black) (See the colorPalette element for parameters and defaults.)
alpha number Determines the alpha transparency of the stroke. Valid values are between 0 (transparent) and 1 (opaque). 1
pixelHinting boolean Indicates whether the stroke should be hinted to full pixels. false
scaleMode string Identifies the stroke scaling mode. Valid values are normal, none, horizontal, and vertical. normal
caps string Determines the type of stroke end caps to use. Valid values are none, round, and square. round
joints string Determines the type of joints to use at stroke angles. Valid values are miter, round, and bevel. round
miterLimit number Determines the limit at which miter joints are cut off. The value expresses a factor of the stroke thickness (see above). It is measured in pixels. 3

Shape and shape palette

Usage: charting.shape.*

You use shape properties to define shape objects for shape palettes, which are designed primarily to enable the assignation of specific shapes to chart markers. For example, you could arrange for each series in a line chart to have markers of different shapes. To do this you would define a list shape palette that sets up a specific shape object for each series, and then assign that to the markerShapePalette property.

Note: By default the shape properties on charts that can use them are not assigned any value. In the case of no value, most chart types use the rectangle shape. The exception is the bubble chart type, which uses the ellipse shape.

Values

Example

This defines a shape palette that contains ellipses.

<option name="charting.ellipseShapePalette">list</option>
<option name="charting.ellipseShapePalette.shapes">[ellipse]</option>

This assigns the new ellipseShapePalette to a bubble chart.

<option name="charting.chart">bubble</option>
<option name="charting.chart.bubbleShapePalette">@ellipseShapePalette</option>

This creates an "upwards pointing" triangle defined as myShape:

<option name="charting.myShape">triangle</option>
<option name="charting.myShape.p1">(0.5,0)</option>
<option name="charting.myShape.p2">(1,1)</option>
<option name="charting.myShape.p3">(0,1)</option>

Used by

shape objects are referenced in shapePalettes of the list type. Or, to put it another way, shapePalettes are populated by lists of shape objects.

Shape properties

Property name Value type Definition Default
Diamond shape

The diamond shape draws a diamond-shaped parallelogram.

snap boolean Indicates whether to snap the shape to whole pixels. false
Ellipse shape

The ellipse shape draws an ellipse.

snap boolean Indicates whether to snap the shape to whole pixels. false
Group shape

The group shape draws a group of shapes simultaneously.

shapes array<shape> The list of shapes to draw. Should be comma-delimited and bracket-enclosed.

If a key or string value in the map contains any of these special characters - []{}(),:" - the special character should be surrounded by double quotes. Existing double quotes or backslashes should be escaped with a preceding backslash.
No default defined. See the shape element for properties and defaults.
brushes array<brush> An optional list of brushes that correspond to each shape in the shapes list. Should be comma-delimited and bracket-enclosed.

If a key or string value in the map contains any of these special characters - []{}(),:" - the special character should be surrounded by double quotes. Existing double quotes or backslashes should be escaped with a preceding backslash.
No default defined. See the brush element for information about its properties and defaults.
Line shape

The line shape draws a line between two points.

p1 point Sets the starting point of the line in relative coordinates (0 to 1. Presented as a comma delimited list of two numeric values (corresponding to x and y, respectively) enclosed in parenthesis. (0,0.5)
p2 point Sets the ending point of the line in relative coordinates (0 to 1. Presented as a comma delimited list of two numeric values (corresponding to x and y, respectively) enclosed in parenthesis. (0,0.5)
snap boolean Indicates whether to snap the shape to whole pixels. false
Polygon shape

The polygon shape draws a polygon.

vertices array<point> A list of points that define the polygon. Each point is presented as a comma delimited list of two numeric values (corresponding to x and y, respectively) enclosed in parenthesis. These parenthesis-enclosed points should then be in a comma-delimited list and enclosed within brackets. These arrays can contain other items that are arrays or nested lists of values such as points, matrices, and so on. For example, you could use [(0,1),(1,1),(1,0)] to describe a set of vertices.

If a key or string value in the map contains any of these special characters - []{}(),:" - the special character should be surrounded by double quotes. Existing double quotes or backslashes should be escaped with a preceding backslash.
No default defined.
snap boolean Indicates whether to snap the shape to whole pixels. false
Rectangle shape

The rectangle shape draws a rectangle.

snap boolean Indicates whether to snap the shape to whole pixels. false
Triangle shape

The triangle shape draws a triangle.

p1 point Sets the first point of the triangle in relative coordinates (0 to 1. Presented as a comma delimited list of two numeric values (corresponding to x and y, respectively) enclosed in parenthesis, without spaces. (0.5, 0)
p2 point Sets the second point of the triangle in relative coordinates (0 to 1. Presented as a comma delimited list of two numeric values (corresponding to x and y, respectively) enclosed in parenthesis, without spaces. (1,1)
p3 point Sets the third point of the triangle in relative coordinates (0 to 1. Presented as a comma delimited list of two numeric values (corresponding to x and y, respectively) enclosed in parenthesis, without spaces. (0,1)
snap boolean Indicates whether to snap the shape to whole pixels. false
Wedge shape

The wedge shape draws a portion of a circle.

startAngle number Indicates the start angle of the wedge in degrees. 0
arcAngle number Indicates the arc (end) angle of the wedge in degrees. 360
snap boolean Indicates whether to snap the shape to whole pixels. false

Shape palette properties

There are three types of shape palettes: field shape palettes group shape palettes, and list shape palettes.

Property name Value type Definition Default
Field shape palette

The field shape palette provides shapes from a specified field-->shape mapping.

fieldShapes map<shapePalette> A field/shape mapping. A map is a comma-delimited list of key/value pairs, enclosed in curly braces. Keys are separated from their values by a colon. Example: {key1:value1,key2:value2,…,keyN:valueN}.

If a key or string value in the map contains any of these special characters - []{}(),:" - the special character should be surrounded by double quotes. Existing double quotes or backslashes should be escaped with a preceding backslash.
No default specified.
defaultShapePalette shapePalette The shape palette to use for unspecified fields. No default specified.
Group shape palette

The group shape palette generates group shapes from other shape palettes.

shapePalettes array<shapePalette> The list of shape palettes from which to retrieve shapes for the group. Should be comma-delimited and bracket-enclosed. No default defined.
List shape palette

The list shape provides shapes from a specified list.

shapes array<shape> The list of shapes to choose from. Should be comma-delimited and bracket-enclosed. No default defined. For more information about shape types, parameters, and defaults, see the shape element table.

This documentation applies to the following versions of Splunk: 4.3 , 4.3.1 , 4.3.2 , 4.3.3 , 4.3.4 , 4.3.5 , 4.3.6 , 4.3.7 View the Article History for its revisions.


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