5460601da3
Only draw the Summary backdrop color when the Summary channel has been expanded. This prevents the default used-to-be-timeline Dope Sheet from showing a big red bar at the bottom of the window. The channel box backdrop (when the channel bar is expanded) also follows this, so when expanded it is red as before, and when collapsed it is dark grey. Pull Request: https://projects.blender.org/blender/blender/pulls/147708