@ DUDU.car: I didn't know you can change the text color in Carrara. In fact I am sure you can't.

Are you saying that in Carrara you can set the text color to bright and the background color to dark everywhere, including the scene tree, the properties panel, the timeline, the library, basically everywhere? And also change the color of the tiny little triangles to bright too, so they are visible on a dark background?

As I mentioned above, from the point of view of readability and the least amount of eye fatigue, Shade's UI is truly a joy to use. This fact alone probably justifies its relatively high, and rather odd price of $666.-