Halo lines the edges of your Mac's display with light that follows whatever is playing. Two colours come from the album artwork in Music or Spotify. Bass sits as a dense line that swells with the kick, mids drift behind it as haze, highs scatter into rays.
It listens to system audio, never the microphone, and can be limited to music apps. Thickness, saturation and per-band brightness are yours. Free for seven days, then 7.99 once. No subscription, no account.
