**Install** Copy arc-ardour.colors in ~/.config/ardour8/themes/ Copy Ardour-*splash.png in ~/.config/ardour8/resources/ Select "arc" in Settings > Colors > Color scheme and restart ardour. Switching back to a different theme will require restarting ardour (this is due to how color aliases are handled in this theme). Recommended appearance settings: - flat and square buttons - no shade on regions - no space under regions - if "use colors to show midi note velocity" in not set, make sure to give MIDI tracks a bright and saturated color to make MIDI editing comfortable.