It is recommended to re-build projects with new version of RSDK. If you modified any GUI related files please back those up before running RSDK.
The start.bat will use the start /B command when no console is passed (--noconsole). The command disables the windows console that would open. To debug and test your game use the debug.bat file. The debug files will not be included in distributions.
More colors were added and more are to follow. The colors are the same from RenPy. Only dark themes are available currently.
Updated
Updated to fix download bugs.