Allow changing color of visualizations

[mx1926]

The ability to change foreground and background colors of visualizations can make audacious even more visually appealing.

• Do other audio players offer this feature?
  Deadbeef and qmmp.

[radioactiveman]

What plugin(s) do you mean exactly?

Blur Scope for example already has a configuration setting for the color. Others like the Spectrum Analyzer and the Info Bar visualizations use the color defined by the GTK/Qt theme.

[mx1926]

I mean all of them, if it's possible. Essentially I am talking about the option to manually change the colors of visualizations, independently of the system theme. Especially, on blur scope, you can change the color of wave, but not the background color.

Thank you!