Finally got a somewhat-finished version of my android app for my Led controller. It can turn LEDs on and off (duh), 5 different modes, where the first (Normal) is for single colors, and has all the colors of the remote control. I didn't want to search for "color samples" to put in there, so I instead just made red/green/blue each with 0-4. These numbers correspond to one color on the remote each and have the same button layout. A feature that I'm really proud of: live updates. So whenever I change something on another device, this app will show, at least for now the modes and if the LEDs are on or off.
With that I am more or less finished with this project, but I'm looking forward to buying like 15m of Ws2812 LEDs, so I can have effects and way more advanced and cool-looking LEDs for my room. If you have ideas what I can add to the app, or if you want to know something about this project just ask in the comments or in my DMs.