Hey Product Hunt — I built GptSkin because changing a coding app’s wallpaper was never enough for me. The image, panels, controls, borders, syntax colors, and contrast should feel like one visual system. GptSkin turns an image into a coordinated theme for the Codex desktop app on macOS and Windows. You can try six presets without creating an account. Custom themes are applied through the open-source GptSkin Skill. GptSkin does not modify Codex’s signed application files or read your conversations, and restoring the default appearance takes one command. For transparency, custom image compilation is server-backed, while presets and saved themes are applied locally. I’d especially value feedback on three things: Do the palettes feel coordinated rather than merely tinted? Is the installation and restore flow clear? Which preset should become the default demo? Thanks for taking a look. I’ll be here to answer technical and design questions.

GptSkin

Turn any image into a complete Codex theme

Turn any image into a complete Codex theme