@khurshid-alam Minimal optimization. So look better. Right at lower resolutions. :)

Is it?

@khurshid-alam This? :) Maybe it is strange for the first time. I think we should have take a picture of the current state as well. If you compare, you can see that between the button's and headerbar;titlebar's edges is a large amount of space, which is strange.
I didn't repair long time ago, because the code wasn't assemled and tested. Now we could do it, I tested and have time to refine it. It is just an optical tuning and looks better on smaller screen by the way. It gives it a kind of old numix style when it was such thin. I didn't want to open a new Issue for it. Retrospectively I am sorry for that!
Please test it, I've already done it and I couldn't find any regressions. (Only the character size, but it is depend on the settings as before. The theme can't help on it.. It is depend on the user too.)

Padding is too less here. Only thing it does that it puts switches and buttons inline.

....you compare, you can see that between the button's and headerbar;titlebar's edges is a large amount of space, which is strange.

There are other areas which are proportionally large (nautilus sidebar selection etc) which needs to be fixed first.

I put this on hold.

Okay :)