Titlebar uses Window Background color instead of Titlebar Color

[Rodancoci]

Hello. As the title says, when using the aurorae styles for the window decorations, the titlebar color is selected from the Window Background color instead of the Titlebar Color, making it impossible to use a dark titlebar with light background colors for example.

Screenshot using a dark Titlebar Color with a cyan Window Background color for clarity:

[HimDek]

As of now, the titlebar color may not be exposed to be used by aurorae themes. But will look into it.