I have come to like the player auto-colouring quite a bit and one thing I am thinking of doing is making auto-colour of the player panel turned on by default. Of course it would only be applied with standard skins or custom skins that state its supported.
However I am wondering how skin authors might feel about that as it could be interpreted as overriding your skin by default so not fully respecting your work.
If anyone objects (send me a PM if you wish) I can do this by adding another skin setting that allows you to specify auto-colour as the default.
How about offering a setting that disables auto-coloring as the default that works for standard skins as well?
If a skin is with a specific non-neutral color theme, the auto-color option may not make it look better. For instance, my Bee Latte skin uses the standard player bar but I don't like to have auto-coloring option applied to it by default.
Then skin authors could decide whether to support the auto-coloring feature for custom skins and whether to apply it by default for any kind of skins. Without such settings, the option will be enabled by default (for supported skins) as you planned.