This is a deep cut, but 4PDA is arguably the most comprehensive archive of modded APKs and themes for Citra. Use a browser translator to navigate; you will find "mods" that allow for custom background images on the game selection screen—something the official build doesn't support.
Yes! Creating a custom theme is a fun DIY project if you’re comfortable editing simple text files and images. citra android themes
Basic steps:
For detailed documentation, visit the Citra Wiki - Theming. This is a deep cut, but 4PDA is
| Problem | Likely Solution |
|---------|----------------|
| Theme not showing in settings | Make sure folder structure is correct (/themes/ThemeName/theme.ini). |
| Citra crashes after applying | Theme may be incompatible. Delete the theme folder or rename it, then restart Citra. |
| Controls look weird | The theme may not support your screen aspect ratio. Stick to themes designed for your resolution. |
| Can’t see Android/data folder | Use a file manager with full access (e.g., Material Files, X-plore) or connect your phone to a PC. | For detailed documentation, visit the Citra Wiki - Theming