Forest Phosphor

A dark VS Code color theme inspired by old CRT phosphor monitors.

Forest Phosphor blends the organic warmth of forest greens with the cool glow of phosphor displays. Backgrounds stay low-contrast for long sessions; syntax tokens are given distinct, luminous identities so code reads cleanly at a glance.

Part of the Forest Phosphor family — a coordinated palette across VSCode, Obsidian, and iTerm2.

Palette

The accent palette is built around three classic phosphor types — P1 green, P3 amber, P11/P22 blue — layered over a deep forest substrate.

• #A2EBA1 — Soft phosphor green (primary foreground)
• #7AF8FF — Cyan glow (highlights, active elements)
• #77B0FF — Cool blue (info, keywords)
• #5AE66A — Bright green (additions, success)
• #D4A24A — Amber (warnings, strings)
• #F8906E — Coral (errors, deletions)

Install

1. Open Extensions in VS Code (Ctrl+Shift+X / Cmd+Shift+X)
2. Search for Forest Phosphor
3. Click Install
4. Open the Command Palette (Ctrl+Shift+P / Cmd+Shift+P) and select Preferences: Color Theme
5. Choose Forest Phosphor

Features

• Full semantic highlighting support
• Comprehensive UI theming — activity bar, status bar, panels, menus, widgets
• Distinct diff/merge colors
• Gutter and overview ruler indicators for errors, warnings, and git changes

Diff view

Integrated terminal

The terminal screenshot pairs Forest Phosphor with the matching iTerm2 preset. Grab it at forestphosphor.dev.

Family

• VSCode — this theme
• Obsidian — forest-phosphor-obsidian
• iTerm2 — forest-phosphor-iterm

All three share the same hex values; switch between apps without losing the look.

Reporting issues

If you find an unstyled element or a token that doesn't read right, open an issue with a screenshot and the language being highlighted. Themes have long tails; user reports are how those gaps get found.

About

Built by Steven Theuerl (August)(@Steven-Theuerl). The full design system lives at forestphosphor.dev.

License

MIT — see LICENSE.