Catppuccin Mocha — Codex app theme

Catppuccin is a community project with an unusually clear philosophy: pastels, warmth, and mercy on your eyes. It ships four 'flavors' from light to dark — Latte, Frappé, Macchiato, Mocha — and Mocha is the darkest and by far the most installed. The lavender-tinted background is the giveaway; nothing else in the dark-theme world looks quite this soft.

The practical win in an agent is legibility without glare. Mocha's contrast comes from hue, not brightness — mauve keywords against a muted blue-charcoal, green strings that sit back instead of shouting. On a long refactor session that difference is real: you stop noticing the window, which is the point.

If your terminal, editor and status bar already run Catppuccin (there are official ports for practically everything), this closes the loop and your whole desk finally agrees on a mood. Swap to Latte on the same page's light sibling when the sun comes out.