When setting a custom logo color it appears to add each r/g/b value of the background color to the logo color. For example if I set the background color to 112233 and the logo color to 001122 the color that is actually displayed on the logo is 113355. This also makes it impossible to have a black logo as setting the color to 000000 will just make it the same color as the background.

Thanks for the report, I'll look into that