Claude-skill-registry jetbrains-theme-investigation

Investigates JetBrains IntelliJ Platform theme properties by searching source code. Use when user asks about UI theming, icon colors, tab spacing, component styling, or needs to find what properties are themeable vs hardcoded in IntelliJ-based IDEs.

install

source · Clone the upstream repo

git clone https://github.com/majiayu000/claude-skill-registry

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/jetbrains-theme-investigation" ~/.claude/skills/majiayu000-claude-skill-registry-jetbrains-theme-investigation && rm -rf "$T"

manifest: skills/data/jetbrains-theme-investigation/SKILL.md

JetBrains Theme Investigation

Investigate theme properties in the IntelliJ Platform source code to determine what is themeable via JSON vs hardcoded in source.

Prerequisites

IntelliJ Platform source code must be available at:

../../JetBrains/intellij-community

(Relative to current project directory)

If not cloned yet:

cd ~/Projects/github.com/JetBrains
git clone https://github.com/JetBrains/intellij-community

Quick Investigation Workflow

Search theme metadata first (what properties exist):

grep -i "PropertyName" ../../JetBrains/intellij-community/platform/platform-resources/src/themes/metadata/*.json

Check reference themes (how properties are used):

grep -r "PropertyName" ../../JetBrains/intellij-community/platform/platform-resources/src/themes/ --include="*.json"

Search JBUI.java for programmatic color access:

grep -A3 "namedColor.*PropertyName" ../../JetBrains/intellij-community/platform/util/ui/src/com/intellij/util/ui/JBUI.java

Search source for hardcoded values if not found above:

grep -rn "propertyName\|PROPERTY_NAME" ../../JetBrains/intellij-community/platform/platform-*/src --include="*.kt" --include="*.java"

Key Directories

Path	Content
`platform/platform-resources/src/themes/metadata/`	Available theme properties (IntelliJPlatform.themeMetadata.json, JDK.themeMetadata.json)
`platform/platform-resources/src/themes/`	Reference themes (expUI, islands, darcula, HighContrast)
`platform/util/ui/src/com/intellij/util/ui/JBUI.java`	CurrentTheme methods mapping to JSON keys
`platform/icons/src/`	SVG icons (check colors used)

Detailed References

For specific subsystems, see:

Icon colors: icon-colors.md - ColorPalette, stroke colors, named keys
Tab system: tab-system.md - Tab gaps, insets, layouts
Islands theme: islands-theme.md - Islands-specific properties
Known limitations: limitations.md - What is NOT themeable
Theme testing panel: theme-testing-panel.md - Dev-mode UI testing panel

Determining if Themeable

Found In Result

Theme metadata JSON Themeable via JSON

JBUI.java with

namedColor

getInt

Themeable via JSON

Source code with hardcoded values NOT themeable (requires code change)