ThemeBuilder
The ThemeBuilder UI is a tool that allows you to create custom themes in the browser; its CLI counterpart allows you to do the same with commands.
If your application uses npm v7 or later, open package.json
and ensure the following:
- The
devextreme
package is listed independencies
. - The
devextreme-themebuilder
package is listed indevDependencies
. - Both packages have the same version.
If these conditions are not met, run the following commands to install the packages:
npm i devextreme@23.2 --save --save-exact npm i devextreme-themebuilder@23.2 --save-dev --save-exact
Build a Custom Color Scheme
devextreme build-theme [--base-theme][--input-file][--make-swatch][--output-file][--version][--widgets][--assetsBasePath][--output-color-scheme][--help] // ===== or without installing the DevExtreme CLI ===== npx devextreme-cli build-theme [--base-theme][--input-file][--make-swatch][--output-file][--version][--widgets][--assetsBasePath][--output-color-scheme]
Export Theme Variables
The following command exports theme variables as a .less
or .scss
file:
devextreme export-theme-vars [--base-theme][--input-file][--output-format][--output-file][--version][--base][--help] // ===== or ===== npx devextreme-cli export-theme-vars [--base-theme][--input-file][--output-format][--output-file][--version][--base]
Export Theme Metadata
Theme metadata is a JSON object that describes the theme. It is used to export or import a theme in the ThemeBuilder UI. Below is an example of theme metadata.
{ "items": [ { "key": "$base-text-color", "value": "rgba(94, 33, 33, 0.87)" }, { "key": "$base-accent", "value": "rgba(64, 156, 199, 1)" } ], "baseTheme": "material.blue.light.compact", "outputColorScheme": "custom-scheme", "makeSwatch": true, "version": "23.2.9", "widgets": ["datagrid","treelist","selectbox"], "assetsBasePath": "../../../node_modules/devextreme/dist/css/" }
The metadata object contains the following properties:
items
An array that describes customized theme variables.key
A theme variable's name.value
The theme variable's value.
baseTheme
A predefined DevExtreme theme which the custom theme is based on.outputColorScheme
The custom theme's color scheme.makeSwatch
A flag that indicates whether the theme is a color swatch.version
The target DevExtreme version.widgets
A list of UI components whose styles are included in the resulting CSS file.assetsBasePath
A path to the folder that contains the DevExtremeicons
andfonts
folders. This property is used only if the icons and fonts are not in the same folder as your custom theme.
Run the following command to export the metadata as a .json
file:
devextreme export-theme-meta [--base-theme][--input-file][--output-file][--base][--help] // ===== or ===== npx devextreme-cli export-theme-meta [--base-theme][--input-file][--output-file][--base]
Command-Line Arguments
--base-theme
Specifies a base theme's name (default:generic.light
).--input-file
Specifies the name of the file that contains input data (a.json
file with metadata or a.less
or.scss
file with Bootstrap variables).--output-file
Specifies the output file name.--output-format
Specifies the format of the output variables:less
orscss
(default:less
or the extension extracted from the--output-file
value (if it contains any)).--output-color-scheme
Specifies the custom color scheme name (default:custom-scheme
).--make-swatch
When present, creates a color swatch, i.e., adds a CSS scope to each CSS rule (.dx-swatch-xxx
, wherexxx
is the value from the--output-color-scheme
parameter).--base
Exports only base variables used to produce derived variables.--version
Specifies the target DevExtreme version or a tag that points to it (the default value islatest
).--widgets
Specifies a comma-separated list of UI components whose styles should be included in the resulting CSS file. If this argument is not specified, styles of all UI components are included. Syntax example:--widgets=datagrid,treelist,selectbox
--assetsBasePath
Specifies a path to the folder that contains the DevExtremeicons
andfonts
folders. Use this argument if the icons and fonts are not in the same folder as your custom theme.--remove-external-resources
When present, removes links to external resources, such as fonts. The theme will use local fallbacks instead.--bootstrap-version
Specifies Bootstrap version 4 or 5 if--input-file
is a.scss
file (default:4
).
Examples
Generate a new custom
color swatch that uses Generic Dark as a base theme:
npx devextreme-cli build-theme --base-theme="generic.dark" --make-swatch --output-color-scheme="custom"
Generate a new pink
color scheme based on the Material Blue Light theme, use constants from the pink.json
file:
npx devextreme-cli build-theme --base-theme="material.blue.light" --input-file="pink.json" --output-color-scheme="pink"
Export base variables for the Generic Carmine theme in LESS format:
npx devextreme-cli export-theme-vars --base-theme="generic.carmine" --output-format="less" --base