Only one shortcut for track color or clip color

Gotcha, and if you keep the color palette always open, I can see how that might help you.

The easiest workaround is to use a function like this to get the current color palette target:

function getCurrentColorPaletteTarget() {
    switch (sf.ui.proTools.colorPaletteWindow.selectorView.value.invalidate().value) {
        case 'Tracks':
            return 'Tracks';
        case 'Clips in Tracks':
            return 'ClipsInTracks';
        case 'Clips in Clip List':
            return 'ClipsInClipList';
        default:
            throw 'Unsupported Color Palette Target';
    }
}

sf.ui.proTools.colorsClick({
    colorTarget: getCurrentColorPaletteTarget(),
    colorBrightness: 'Medium',
    colorNumber: 3
});