UI: Could you brighten up the colors? #174
Description
The current color palette is very dark, which is hard for me to work with.
Currently the background is so dark that new parts are brighter in contrast. Could you support a "light mode" where the background is white or nearly white, and the part you draw is dark in contrast? This could extend to the UI widgets as well, which could be white or nearly white. Onshape is a good reference UI which satisfies that kind of approach.