Once you have secured a valid (which should download a .json file), follow these steps. Do not unzip the file; Citra reads the JSON directly.
Would you like more information on how to apply themes or find specific themes for Citra? citra android themes link
This is the method you'll need to use for custom themes downloaded from community sources. The exact steps may vary slightly, but a common process is as follows: Once you have secured a valid (which should download a
files. This is a popular community-driven feature where users share specialized skins—like Pokémon or classic console aesthetics—to replace the standard look. How to Use Citra Android Themes citra android themes link
What are you playing (e.g., Pokémon X/Y, Ocarina of Time 3D )? Are you using official Citra or Citra MMJ ?