Can I change the default Catppuccin theme to something else?

[einarbr]

Is Catppuccin Mocha fixed, or can I swap it for something else? I'd like
Gruvbox if possible.

[bgunnarsson]

Yes — it's config, nothing is baked in.

Fifteen presets ship in themes/, one folder per theme with a theme.toml inside. Ten dark (catppuccin-mocha, dracula, tokyo-night, night-owl, one-dark, gruvbox, nord, github-dark, monokai, visual-studio) and five light (catppuccin-latte, light-owl, solarized-light, ayu-light, github-light).

For Gruvbox: open themes/gruvbox/theme.toml on GitHub, copy the contents, and paste them into ~/.config/binvim/config.toml. If you already have a [colors] block in there, replace it rather than adding a second one — each preset carries the full chrome palette, so switching theme repaints every surface (tab bar, status line, popups, pickers, panes) instead of leaving Catppuccin tones behind.

If you'd rather build your own, set background and nothing else. binvim derives the neutrals — chrome_bg, surface, border, foreground, dim — from it by luminance-aware mixing, so a one-line palette still comes out coherent. themes/catppuccin-mocha/theme.toml mirrors the default explicitly with annotated comments if you want a starting point to edit.