It would be nice to randomize the color of existing tracks or by increment or decrement a color number ( of course with wrap around). Currently, the Set Color parameter in PLE can only be set to a fixed value.
Sample Use cases: Say you split a clip into many pieces and you like the neighboring clips/event have different colors for visibility. also having more control over automatic track coloring.
If this is too hard, developers can add “color picker” to "add track dialog window.