Is there a way to change the default search engine — either to match your system default or to a custom engine?
If not, it would be a welcome feature for those of us who attempt to avoid Google.
(And yes I know it can be done with a workflow, but sometimes it's nice just to have default behavior.)
This is more of an user-interaction edge case than a bug:
When reading a long markdown document in Preview, there are relative links to text files, e.g.
[Another File](/reference-file.txt). Click the link to the relative file and it displays in preview as black monospaced plain text on white. In order to go 'back' to the originating preview you must go back to the editor, make a change, then return to Preview for the refreshed markdown preview of the initial document. (Note: a change must be made to revert the preview to the original document. Otherwise Preview is stuck on the relative file in plain-text mode.)
Possible solution: a 'back' button that appears when you open a second document in preview. An added bonus: showing the referenced text file as a rendered preview.