.. and indent the content for Playback.

Also in the Action Clip ...

C code -.-

The panel content is in ource\blender\editors\space_nla\nla_buttons.c
static void nla_panel_properties(const bContext *C, Panel *panel)
and
static void nla_panel_actclip(const bContext *C, Panel *panel)
Unassigning. Not to solve at this point. Maybe at a later one.
first steps in editing C UI code, should I keep the issue branch open and do all commits then pull request, or pull request now?

Just make a pull request. I'll study the code at a later point. C is my weak side. But i already learned quite a few things from your change here. Thanks :)
Forgot to add. When you find other panels that needs a change then this is a new task. I'm no friend of all in one patches that tries to fix everything in one big commit.
And one more, just noticed that these props uses the heading feature now, and the checkboxes are middle aligned. This is not what we really want. We want them left. When it's with a label, then indent. Like in this example here. Is this even possible?

And one more, just noticed that these props uses the heading feature now, and the checkboxes are middle aligned. This is not what we really want. We want them left. When it's with a label, then indent. Like in this example here. Is this even possible?
I think it is possible
Forgot to add. When you find other panels that needs a change then this is a new task. I'm no friend of all in one patches that tries to fix everything in one big commit.
great, will do so
Just make a pull request. I'll study the code at a later point. C is my weak side. But i already learned quite a few things from your change here. Thanks :)
I'm glad I helped 馃槉
Task is solved and merged. Closing.