I successfully build synfig from source! I’m so excited However when I select the “Dark UI theme (if available)” it doesn’t seem to work… Does that mean the dark theme is not available for Ubuntu? Or is there some other way to build it.
I believe the problem is my Ubuntu 16.04 theme Ambience, either doesn’t have a dark theme or doesn’t have a dark theme that supports the GTK version of Synfig. I’ve download some other themes and the dark theme works! So it’s my operating system issue not Synfig.