Optional Full-Width Gifs!
With the new update, Tumblr forced gifs (and possibly other images?) to stretch to fit the width of the post. With the new option in Tweaks 3.3.1, we’ve added a checkbox to the gear drop-down in post creation to turn that off.
As it stands now, the option only works on images already added to the post, so make sure you use it after you’ve added all the images you want original-sized.
For gifs added from the gif browser, the “originally posted by” is still full width:
