50 Dark Themes · 27 / 50

Lichen

A green accent, #AFC49A, on a #20241E terminal. Primary text reads at 13.26:1 and secondary text at 6.78:1, measured against that background. Free and MIT licensed, one of the 50 Dark Themes for Claude Code.

Lichen

#AFC49A
✻ Claude Code · lichen
● Applied theme “Lichen”
  3 files changed · staged
> show me the diff
>theme lichen
/theme  ·  ⏎ send  ·  esc to interrupt

Install Lichen.

Requires Claude Code v2.1.118 or later. The marketplace command is needed once per machine; the plugin command installs the whole 50 Dark Themes pack, and /theme inside Claude Code switches to this one.

$ claude plugin marketplace add notgabriels-sys/claude-code-50-dark-themes
$ claude plugin install 50-dark-themes@notgabriels-themes
$ /theme lichen

Plugin themes are read-only. Press Ctrl+E on one in /theme for an editable copy in ~/.claude/themes/.

Or copy just this file.

One theme, no plugin: fetch lichen.json from the repository into your themes folder. If that folder did not exist when Claude Code started, restart it once.

$ mkdir -p ~/.claude/themes && curl -fsSL https://raw.githubusercontent.com/notgabriels-sys/claude-code-50-dark-themes/main/lichen.json -o ~/.claude/themes/lichen.json

Terminal background: #20241E.

Claude Code colours its own interface; the terminal application owns the canvas behind it. Every figure below is measured against #20241E, so set that as the terminal background for the result the numbers describe. On a different background the ratios move.

Palette.

The thirteen overrides Claude Code reads from the theme file. Success, error, warning and diff colours are deliberately not overridden, so status meaning stays the same across every theme in the pack.

ColourTokenRole
#AFC49AclaudeClaude's mark and accent
#D8E2CEclaudeShimmerAccent highlight while Claude works
#EAECE9textPrimary text
#A3AD9FinactiveSecondary text
#32372FsubtleDecorative hairlines (reserved, carries no meaning)
#AFC49AsuggestionAutocomplete suggestions
#CEDBC1permissionPermission prompt border and indicator
#AFC49ApromptBorderInput prompt border
#D8E2CEpromptBorderShimmerPrompt border highlight
#CEDBC1planModePlan mode indicator
#2A2F27userMessageBackgroundSurface behind your messages
#343A30userMessageBackgroundHoverThat surface, hovered
#AFC49Arate_limit_fillUsage meter fill

Measured contrast.

Computed from the hex values above with the WCAG 2 relative-luminance formula, by the same script that gates every change to this repository. Figures are truncated, never rounded up. Each row meets its floor.

PairColoursRatioFloorStandard
text on terminal background#EAECE9 on #20241E13.26:17:1WCAG AAA, normal text
text on your-message surface#EAECE9 on #2A2F2711.51:17:1WCAG AAA, normal text
inactive on terminal background#A3AD9F on #20241E6.78:14.5:1WCAG AA, normal text
inactive on your-message surface#A3AD9F on #2A2F275.88:14.5:1WCAG AA, normal text
claude on terminal background#AFC49A on #20241E8.39:14.5:1WCAG AA, normal text
claudeShimmer on terminal background#D8E2CE on #20241E11.77:14.5:1WCAG AA, normal text
suggestion on terminal background#AFC49A on #20241E8.39:14.5:1WCAG AA, normal text
permission on terminal background#CEDBC1 on #20241E10.90:13:1WCAG AA, non-text
planMode on terminal background#CEDBC1 on #20241E10.90:13:1WCAG AA, non-text
promptBorder on terminal background#AFC49A on #20241E8.39:13:1WCAG AA, non-text
promptBorderShimmer on terminal background#D8E2CE on #20241E11.77:13:1WCAG AA, non-text
rate_limit_fill on terminal background#AFC49A on #20241E8.39:13:1WCAG AA, non-text
your-message surface against the terminal#2A2F27 on #20241E1.15:11.08:1visibly distinct surface
hovered surface against the resting one#343A30 on #2A2F271.16:11.08:1visibly distinct surface