Flexoki for JetBrains

Light and dark Flexoki themes for GoLand / IntelliJ-based IDEs, with matching editor color schemes. Designed to pair with GoLand's native Sync with OS so it tracks the macOS light/dark appearance (the same way Ghostty does).

This is a resource-only plugin (no compiled code), so it builds with just zip — no JDK or Gradle required.

Layout

flexoki-jetbrains/
├── META-INF/
│   ├── plugin.xml              # declares the two themeProviders
│   └── MANIFEST.MF
├── themes/
│   ├── flexoki-light.theme.json   # UI chrome  → references flexoki-light.xml
│   ├── flexoki-light.xml          # editor color scheme (syntax highlighting)
│   ├── flexoki-dark.theme.json
│   └── flexoki-dark.xml
├── flexoki-plugin.zip          # ← install THIS (Flexoki/lib/flexoki.jar)
└── flexoki.jar                 # bare jar (also installable)

Build

cd ~/flexoki-jetbrains
zip -q -r flexoki.jar META-INF themes
rm -rf dist && mkdir -p dist/Flexoki/lib && cp flexoki.jar dist/Flexoki/lib/
(cd dist && zip -q -r ../flexoki-plugin.zip Flexoki)

Install

1. GoLand → Settings (⌘,) → Plugins → gear icon ⚙ → Install Plugin from Disk…
2. Select ~/flexoki-jetbrains/flexoki-plugin.zip
3. Restart GoLand when prompted.

Make it adaptive (track macOS appearance)

Settings → Appearance & Behavior → Appearance:

• Check Sync with OS
• Click Light/Dark (or the gear next to it) and map:
  • Light theme → Flexoki Light
  • Dark theme → Flexoki Dark

Now GoLand switches both UI chrome and editor colors automatically with the system — no wrapper script needed (unlike the k9s skin).

Syntax color mapping

The palette is exact Flexoki (light = 600 weights, dark = 400 weights). Token assignment:

Token	Light	Dark
Keyword	red #AF3029	#D14D41
String	green #66800B	#879A39
Function	orange #BC5215	#DA702C
Type / Class	yellow #AD8301	#D0A215
Number	purple #5E409D	#8B7EC8
Constant	cyan #24837B	#3AA99F
Parameter / Field	blue #205EA6	#4385BE
Annotation	magenta #A02F6F	#CE5D97
Comment	base-600 #6F6E69	base-500 #878580

The terminal/run-console ANSI palette is mapped to match Ghostty Flexoki exactly.

Notes

• The editor color scheme (*.xml) is the high-fidelity part. The UI chrome (*.theme.json) is a conservative Flexoki tint over the base IntelliJ Light/Darcula theme and may want in-IDE tweaks (Settings → Appearance, and the theme JSON ui block).
• To iterate on the editor colors live without rebuilding: Settings → Editor → Color Scheme, duplicate, and tweak; or re-run the build and reinstall.
• Palette by Steph Ango (MIT). This port: Haoxin Yang.