marfegte/escada-led-app ? reverse-engineered prompt

Build me a simple Android app for an LED staircase setup.

I want it to feel clean and easy to use, with a main screen that shows the light status, lets me turn the LEDs on and off, and gives me a few simple preset modes like steady, fade, and automatic. If it makes sense, add basic controls for brightness and speed too. Keep the design straightforward, something that would be easy to use on a phone while standing near the stairs.

Please make it look finished, with sensible defaults, clear labels, and a layout that works well on different screen sizes. If you need to check current Android guidance or libraries, look up the latest docs online.