Hard margins on add-ons iframe - is it necessary?

[oleh.vasyliv]

I have added a suggestion on the other related post.
The recommendation is to fill that margin space with a color of the left panel instead of white.

IMHO it will look much better:

Weird white zone at the left of app iframe

Totally agree that the white space bar looks like from the other world… Atlassian has put so much effort to polish the Cloud UI and now introducing quite a weird 20 pixels white bar that ruins this effort. The blog post mentioned above had an email address specified for suggestion/recommendation and I sent one but got no reply for more than a week… So, I copied the email here to hopefully get more attention: I perfectly understand why you added that 20px padding as we were experiencing the …