I want to add my voice to this thread because I've played this game for a long, long time and this issue (genuinely) does not seem to be improving.

The native colorblind settings are just dogwater. They're just plain bad. It's pretty insane that some folks have to go look for third party programs to assist them to see the game to a reasonable degree.

Why Square Enix doesn't test their content with players who have these kind of disabilities is beyond me -- it's clearly not something that's particularly rare.