Themes
Community colour themes, and themes with a PNG or GIF background. Every background is checked for its file type, size and checksum before it is listed. Themes only set colours and a background picture. They cannot add code.
Using a theme
Copy a theme file with its button, then import it in Yapnap. Importing themes inside the app is not in this version yet, so for now a theme is a file you keep for later.
Submitting a theme
Add a JSON file and, for PNG or GIF themes, the image. Images must be at most 2 MB and 3000 pixels on each side. Read the site README for the full rules.