Instrument

A light and dark editor theme built on one rule: color means something, or it isn't used.

Light Dark

Design logic

Most themes decorate — a hue per token type, gradients on panels, glow on focus. This one works like the control face of a well-made instrument: a neutral body, one signal color reserved for what actually needs attention, and everything else quiet enough to disappear.

Palette (both themes share the same roles, remapped for contrast):

Role	Light	Dark	Used for
Paper / Graphite	`#EDEBE3`	`#201F1D`	editor surface
Chrome	`#E2DFD4`	`#1A1917`	sidebar, status bar, tabs — one step off the paper
Ink	`#24231F`	`#E8E4D9`	body text
Signal	`#C6491C`	`#E2652E`	keywords, cursor, active tab, errors, focus — the only saturated color, used sparingly
Dial	`#4C6B75`	`#7FA3AC`	functions, types — a cool secondary, never competing with signal
Moss	`#5F6F3F`	`#93A66B`	strings
Amber	`#8C6D2E`	`#C99A46`	numbers, constants, warnings

Signal is the only color allowed to be loud. It marks the cursor, the active tab's top edge, keywords, and errors — the same way a single indicator lamp does on a well-designed panel, not a rainbow of equally-loud states. Structural characters (brackets, punctuation, operators) sit in muted ink so they read as scaffolding, not content. Line numbers nearly vanish until the active line pulls dial-blue.

Install

Copy the instrument-theme folder to your VS Code extensions directory:
- macOS/Linux: ~/.vscode/extensions/instrument-theme
- Windows: %USERPROFILE%\.vscode\extensions\instrument-theme
Restart VS Code (or reload window: Cmd/Ctrl+Shift+P → "Developer: Reload Window").
Cmd/Ctrl+Shift+P → "Preferences: Color Theme" → pick Instrument Light or Instrument Dark.

Alternatively, package it properly with vsce:

npm install -g @vscode/vsce
cd instrument-theme
vsce package
code --install-extension instrument-theme-1.0.0.vsix

Instrument

Dmitry Melnikov

Instrument

Design logic

Install