Ok, so, here I loaded the Normal project template, and deleted the MIDI track and added some audio tracks, then dragged some audio clips from the Browser into the tracks. At this stage, all clips' Use Track Colors boxes are enabled (by default). The screenshot below shows the Use Track Colors box of the clip in Track 4 that I have selected.
Next, without doing anything to the Clip Inspector of the clip in Track 4, I just move the focus to the 1st track and then hit Ctrl+A, which selects all clips and tracks like this:
Then, if I untick the Use Track Colors box, all clips selected changes its foreground color (waveform) to match the foreground color of the clip in the 1st track (btw, this shouldn't happen, and CW has already confirmed this bug), like this:
Finally, even if I change the strip color of all the tracks, it doesn't affect any of the clips.
You can change the clip foreground and background colors to whatever colors you like, and changing the strip colors doesn't affect the clip colors at all.
Hope that helps