[FEATURE]: Add ef-themes collection by Protesilaos Stavrou

[anntnzrb]

Summary

I'd like to propose adding themes from the ef-themes collection by Protesilaos Stavrou to OpenCode. These are well-established, accessibility-focused themes originally designed for GNU Emacs, with 490+ stars and active maintenance.

Why ef-themes?

• Cohesive design: All 34 themes share consistent design principles focused on legibility and aesthetics
• Accessibility: Includes dedicated themes for color vision deficiencies (deuteranopia, tritanopia)
• Variety: Covers seasonal/mood themes (autumn, winter, spring, summer, day, night, frost, etc.)
• Established: Part of GNU ELPA, widely used in the Emacs community
• License: GPL-3.0, compatible with OpenCode
• Port-ready: Terminal color definitions already exist via ghostty-themes

Available themes (34 total)

Dark (17)	Light (13)	Accessibility (4)
ef-autumn, ef-bio, ef-cherie, ef-cyprus, ef-dark, ef-dream, ef-duo-dark, ef-eagle, ef-elea-dark, ef-kassio, ef-maris-dark, ef-melissa-dark, ef-night, ef-owl, ef-rosa, ef-symbiosis, ef-trio-dark, ef-winter	ef-arbutus, ef-day, ef-light, ef-frost, ef-spring, ef-summer, ef-duo-light, ef-elea-light, ef-maris-light, ef-melissa-light, ef-reverie, ef-trio-light	ef-deuteranopia-dark, ef-deuteranopia-light, ef-tritanopia-dark, ef-tritanopia-light

Sample Screenshots

Note: These are from Emacs, but colors will translate to OpenCode's TUI

Dark Themes

ef-autumn

ef-winter

ef-night

Light Themes

ef-summer

ef-melissa-light

ef-frost

Accessibility Themes

ef-deuteranopia-dark (red-green colorblind)

ef-deuteranopia-light

ef-tritanopia-dark (blue-yellow colorblind)

ef-tritanopia-light

Questions for maintainers

Before investing effort in implementation, I'd like to understand:

1. Would you accept this collection? Given OpenCode already has ~30 themes, would adding more be welcome?

2. How many is too many? Would you prefer:

   • Option A: A curated subset (~8-10 themes covering dark/light/accessibility)
   • Option B: The full collection (34 themes)
   • Option C: Start with a few, add more based on user demand

3. Contribution format?

   • One PR with all themes
   • Multiple smaller PRs (batched by category)
   • Individual PRs per theme

Resources

• Original Emacs package: https://github.com/protesilaos/ef-themes
• Documentation & all screenshots: https://protesilaos.com/emacs/ef-themes-pictures
• Terminal color ports: https://github.com/anhsirk0/ghostty-themes

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I'm available to implement this once there's guidance on the preferred approach.

[malhashemi]

Hi @anntnzrb custom themes are a thing in OpenCode. Just place the .json files in ~.config/opencode/themes for example I have a matugen theme generated theme that I call dynamic.json (I mainly use that instead of the default system, so I can have no background for OpenCode). Would be nice if someone makes a Repo with all community submitted themes that we can all contribute to. Unfortunately, OpenCode does not support theme hot reloading at the moment so we can't have a plugin where we can download themes directly from the Repo (see open PR #4879 )

[ariane-emory]

Personally, I think more themes are always a great idea.