Feedback Wanted: UI of FM receiver GsoC project

Hi everyone! As part of my GSoC project, I've been working on an FM radio app, and I just finished the first layout draft—would love your thoughts!

Main features:

• Debug view: FM receiver controls like sampling rate, filter size, squelch, gain (still working on this part)

• Home page: Auto SDR detection, frequency scanning, channel listing, multi-stream recording with RDS (station info, song titles, etc.)

• On-demand flowgraph control for better performance

The UI is kinda Spotify-inspired. I've attached sketches and Figma mockups—let me know if it's missing something, looks off, or just feels boring. First time designing an app, so all feedback is welcome!