It mostly works. 
There are possibly two problems.
- I’m not sure if this new feature should automatically work for all old posts - if yes, then it doesn’t work for the picture in this post (I still cannot see the right part of this picture and there’s no embedded “+” button to “zoom in” at all): [url]TH2 Drawn with "colz" option - colors and range
- looking at the “original problem case”, I can see the whole picture now. If I click the embedded “+” button, I get a “zoomed in” version (which is also fine). That new picture contains again two buttons (top-left): “-” for “zoom out” and “+” for “real dimensions” - but that next “full zoom” / “real dimensions” button works badly.
I have just realized that the problem 2 depends on the actual size of Firefox’es window - when I resize the window, the “full zoom” picture’s size “jumps” - sometimes it takes the majority of the available window and sometimes it’s very flat (even flatter than what you see in the picture above), but it always takes the full available width of the Firefox’es window.
