Beyond just "themes," you can fundamentally change how the game looks through layout modifications and HD texture packs.
Download your preferred theme ZIP file.
To make games look high-definition, search for specific game packs (e.g., "Mario 3D Land HD textures"). In Citra, enable "Use Custom Textures" in graphics settings. This creates a load/textures folder where you can place extracted texture folders matching the game's unique Title ID. citra android themes link
Installing a theme typically requires a file manager (like ZArchiver) to move files into the emulator's internal directory. Beyond just "themes," you can fundamentally change how
For those looking for a "Classic 3DS" look, there are official 3DS theme archives available for download. How to Install Themes on Citra Android In Citra, enable "Use Custom Textures" in graphics settings
Adding high-resolution textures or complex themes can tax your device. For a smooth experience, ensure your device meets these baseline specs: Citra Screen Layout Generator
You can find web-based Citra themes and skins here that change background colors and schemes.