Until now we’ve had the possibility to customize the background and the buttons within the presets miniExtensions offers us, using a certain predetermined color within the preset as background and another as buttons color. I think it would be a great feature to be able to chose freely which color within the preset you want to use for background and for buttons.
Another request that I would want to make would be to be able to use an image as background, as it would increase enormously the customization.