MIDIFlasher MIDI-driven color display Plugin by Larry Taylor AU MacOS Free

Usage:

• Download the zip file and unzip it.
• Move the MIDIFlasher.component folder to /Library/Audio/Plug-Ins/Components (system location) or ~/Library/Audio/Plug-Ins/Components (user location).
• Depending on your DAW, you probably will need to restart it or re-scan plugins before using MIDIFlasher.
• Insert MIDIFlasher into a MIDI track in a DAW and send MIDI to the plugin to show colors. Click in the lower left corner of the plugin window to see the help page for more details.

https://www.larrymtaylor.com/software.php