Make the title clip text border optional
Currently the text in a title clip is shown with a border which can be easily seen by setting the foreground color to transparent and the background color to some bright color. The user should have the option of disabling it in the middle pane > Title tab implemented in titleeditor.py.
Start to follow how the
outline-color children property works by looking at ges-title-source.c
You'll find out it's linked to a
textoverlay element, which you can investigate with:
$ gst-inspect-1.0 textoverlay