I just bought this cool 3d software this morning, and i have changed some colors in the UI for my needs.
Before extract my file, it's better to save your "GUI.BMP" in other location to go back with the default colors if you don't like my change. The "GUI.BMP" file is located in the main folder of Curvy.
You need to rename my file in "GUI.BMP" to see the change at the next start up of Curvy.
Here the preview: