Terminal themes

Dalton Dark / Dalton Bright (gerchowl)

repo, MIT. “A colorblind-friendly terminal color scheme for deuteranopia and protanopia.” Ghostty, iTerm2, lazygit, CSS. 16-color ANSI palettes where red/green/blue slots are luminance- and hue-separated under both dichromacies. Dark and light.

hakarune/colorblind-terminal-themes

repo, GPL-3.0. A verified (not just designed) collection: ships its own Machado-2009 simulation script (scripts/cvd_sim.py) and checks every theme against protanopia, deuteranopia, and tritanopia. Strategy: replace only the red/green ANSI slots (red→orange, green→blue), keeping the rest of each upstream palette intact. Covers the five major terminal stock palettes (GNOME, Konsole, iTerm2 Basic, Windows Terminal Campbell, Alacritty) plus CVD remixes of Dracula, Nord, Solarized, Tokyo Night, Catppuccin, Gruvbox, and a repaired dichromatic port (dichromatic-fixed fixes a real deuteranopia collision between the original’s color9/color10).

iTerm2-Color-Schemes CVD entries

repo (gallery iterm2colorschemes.com): ships GitHub Dark/Light Colorblind (converted from Primer), Modus Operandi/Vivendi Deuteranopia & Tritanopia ports, and datum. Hexes verified against the .itermcolors plists; they match the Primer/Modus sources in the sections above.

WezTerm ships 7 CVD schemes built in

WezTerm’s built-in scheme index (1001 schemes synced from iTerm2-Color-Schemes/base16/Gogh) contains exactly 7 CVD-named schemes, all from the two Protesilaos Emacs families: Ef-Deuteranopia-Dark/Light, Ef-Tritanopia-Dark/Light, and Modus-Operandi/Vivendi-Deuteranopia, Modus-Vivendi-Tritanopia. WezTerm is therefore one of the only terminals with first-party CVD schemes out of the box. (Ef-Deuteranopia-Dark: bg #000a1f, fg #ddddee, red→orange-brown #cf8560, cursor #ffff00.)

Microsoft’s own deuteranopia scheme

Windows Terminal ships no built-in CVD scheme. But Microsoft’s own Windows Terminal repo ships deuteranopia.itermcolors in its ColorTool samples (MIT) — an aggressive remap (red→yellow #999900, green→blue #000099, bright red→#ffff00, bright green→#0000ff). Functional, not refined; the blue channel is heavily reused. It’s a sample, not a shipping default — hence the “no built-in” finding stands, but a Microsoft-authored CVD palette does exist.

Konsole / Yakuake — no dedicated project, but an import path

No Konsole- or Yakuake-specific CVD theme project exists (store.kde.org is bot-walled). The import path that works: iTerm2-Color-Schemes’ konsole/ directory ships 7 CVD .colorscheme files (Dalton Dark, GitHub Dark/Light Colorblind, and four Modus variants), which import into Konsole and Yakuake. And projekt0n’s github-theme-contrib publishes four GitHub Colorblind/Tritanopia Konsole schemes (MIT) on the KDE store.

orca-themes — deuteranopia, quantified

repo (2026) for the Orca terminal. The most measurement-driven terminal entry: every theme is run through full-strength Machado 2009 simulation and scored by CIEDE2000 red/green gap, with the numbers published (their GitHub Dark Colorblind Fixed scores 58; Orca’s stock Tango Light scores only 8; “above 20 reads as clearly different”). Ships github-dark-colorblind-fixed.yaml which repairs real defects in GitHub’s own colorblind terminal port (duplicated ANSI blue, red/yellow clash). Dark + light.