Paint should have Stop icon aligned to the right

[HoboPrimate]

So that when you have bigger screen resolutions, like in this screenshot, the Stop button is still on the right..

[HoboPrimate]

stop button is not right-aligned

[godiard]

The problem is, in a xo with the normal resolution, if we add a separator, the stop button fall out of the toolbar.

[garycmartin]

Replying to godiard:

The problem is, in a xo with the normal resolution, if we add a separator, the stop button fall out of the toolbar.

See Physics activity (and maybe some others) for the fix, you need to set the size of the separator so it does not eat some min amount of toolbar space (should be doing this in all activities):

separator = gtk.SeparatorToolItem()
separator.props.draw = False
separator.set_size_request(0, -1)
separator.set_expand(True)
toolbar_box.toolbar.insert(separator, -1)
separator.show()

[godiard]

Thanks Gary.

Pushed as 8beee4fa438697ca8a5b82cb1c38a862c5f893f4