This is a Musescore QML plugin script that naively colors the melody-line on a standard notation chord-melody staff.
Music Composition & Notation
Color Melody-Line Notes Plugin
This plugin will make a naive attempt to color notes red to mark the melody-line of the score. It simply assumes that the highest pitched note is the melody note. To use it you do have to select one, or all, of the measures on one staff. This is my first plugin so it certainly is not sophisticated. While it is of use to me, my main goal here was to gain some experience making a plugin. Please feel free to improve on this.
Copyright (C) 2020 Jeffrey Rocchio
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation and appearing in the file LICENCE.GPL