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68 lines
3.2 KiB
Markdown
68 lines
3.2 KiB
Markdown
[//]: # (title: Theme Structure)
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<!-- Copyright 2000-2022 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license. -->
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<excerpt>Overview of a theme plugin project structure and the most important elements.</excerpt>
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Themes are components within [IntelliJ Platform plugins](plugin_structure.md).
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The theme plugins should be stand-alone and not combined with other plugin functionality.
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> To see a full example theme project, see the [Theme Basics](%gh-sdk-samples%/theme_basics) in IntelliJ SDK Code Samples.
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>
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{type="note"}
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Themes have several components:
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* A required Theme description (JSON) file in the plugin project's <path>resources</path> folder.
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* A required `themeProvider` declaration in the plugin's <path>[plugin.xml](plugin_configuration_file.md)</path> file, located in the plugin project's <path>META-INF</path> folder.
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* An optional Editor Scheme description (XML) file derived from an exported IDE editor scheme.
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This file is located in the plugin project's <path>resources</path> folder.
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* An optional background image file, located in the plugin project's <path>resources</path> folder.
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* Optional icon image files, located in the plugin project's <path>resources</path> folder.
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## Theme Description File
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The most important file in every theme project is the theme description file.
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The content of the default file generated with the [Theme wizard](creating_theme_project.md) is a short set of key–value pairs:
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```json
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{
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"name": "theme_basics",
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"author": "",
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"dark": false,
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"editorScheme": "/theme_basics.xml",
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"ui": {
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}
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}
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```
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* `name` key matches the first portion of the Theme description <path>$THEME_NAME$.theme.json</path> file name. The value of `name` is displayed in the [Theme](https://www.jetbrains.com/help/idea/settings-appearance.html) <control>Preferences</control> dropdown when the theme's plugin is installed in the IDE.
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* `author` - specifies the theme author (empty by default).
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* `dark` - determines the base theme (_Light_ or _Darcula_) that is customized.
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* `editorScheme` - specifies the editor scheme file that describes fonts and colors used in editors (see [](themes_extras.md#adding-a-custom-editor-scheme) for more details).
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* `ui` - allows for overriding the base theme (_Light_ or _Darcula_) properties (see [](themes_customize.md#custom-ui-control-colors) for more details).
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The wizard also creates a `themeProvider` declaration in the [`<extensions>`](plugin_configuration_file.md#idea-plugin__extensions) section of the plugin's <path>plugin.xml</path> file.
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This declaration binds the theme description file to a theme provider extension using a generated unique `id`.
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```xml
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<extensions defaultExtensionNs="com.intellij">
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<themeProvider
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id="eb9b7461-397b-4b98-a422-224fc0a74564"
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path="/theme_basics.theme.json"/>
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</extensions>
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```
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> Do not modify or re-use an existing value of the generated `id` attribute.
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>
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{type="warning"}
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## Theme Customization
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The following sections describe the theme customization possibilities in detail:
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* [](themes_customize.md#customizing-icons)
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* [](themes_customize.md#customizing-ui-controls)
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* [](themes_extras.md#adding-a-custom-editor-scheme)
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* [](themes_extras.md#adding-a-custom-background-image)
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