The dropdown list could have a more consistent spacing

[Reinmar]

This is how it looks like now:

When I first saw this life after the recent changes I thought that some styles didn't refresh.

• First I noticed very small vertical spacing at the start and end of the list.
• Then I thought that even though the font sizes are different, the items should take the equal height (that's the case in Google Docs for example).
• Finally, when none of the items is selected, the space on the left looks like a bug too ;|. It looks better with at least one item selected, though:

BTW. Check the formats and font family and font size dropdowns in Google Drive :) Interesting that they use all 3 types. The first has a check mark even though only one item can be selected at a time. The second use no marker. The second has check marks and more than one item can be selected at once. The last one has no check marks and only one item can be selected.

Anyway, even if the space on the left is ok, the inconsistent vertical spacing seems to be an issue still.