I'd love to have this alignment issue fixed, but I remain a bit leery and suspicious about the text_padding being divided by two. Do we know where the extra comes from? I'd feel better if we were subtracting a value related to some other value, or even a constant scaled by widget_unit. Or if it is doubled somewhere (and therefore makes sense to half it here) then I'd like to see a comment explaining that.

However, if this fixes it yet the exact reason is (so far) unknown - I know how hard these things are to track down - then I'd still like a comment explaining such and maybe with a "TODO" comment as well.

@Harley Acheson (harley) If you set text_padding to zero, you can easily see what this padding does. It is located in the widget_draw_text_icon function.

This padding already depends on U.widget_unit, so just dividing by two should work well.
There may be a different value here, zero for example, but I think the half looks good, and it is safer because there is still some indent.

Found the related patch: D4503.