You're interested in Geometry Dash 22 and its Mega Mod Menu! That's a fascinating topic.
The menu allows for deep UI tweaks, including RGB color selection for game modes and custom menu music via mods like Jukebox . Best Alternatives (Free vs. Paid) geometry dash 22 mega mod menu top
A rising competitor to Mega Hack, Eclipse offers a more minimalist design but includes exclusive features like "Live Replay" (watch your run back instantly) and "Smart Noclip" (only passes through obstacles if it would have killed you, preserving the feeling of skill). You're interested in Geometry Dash 22 and its Mega Mod Menu