Dress your AI workbench
the way you like
ReTheme is the theme workbench for AI coding desktop apps. Preview, install and manage UI themes in one click — with your config kept safe.
$6/year or $25 lifetimeEvery Pro theme included

Every detail, built for app theming
Detection, preview, install and rollback — a complete workflow.
Auto-detect Codex
Finds your Codex install the moment you open the app. Zero setup.
Live preview first
True WYSIWYG preview before installing. Switch in a second if it's not your thing.
One-click install / restore
Non-invasive theming: never touches the app itself, never blocks official updates. Restore anytime.
Safety protection
Backs up before every install and checks everything works after. Your setup stays safe.
Theme store
A constantly growing store of dark, light and colorful themes.
Cross-platform desktop app
Runs natively on macOS, Windows and Linux. Under 10 MB, opens in a blink.
Three steps to a new look
No config edits. No digging through directories.
Download
Get the ReTheme desktop app and open it.
Pick a theme
Browse the store with live UI previews of every theme.
Install
One click — seconds later Codex has a fresh new look.
Make your workbench look great today
From $6 a year — or $25 once, yours forever.