Playing around with the new image viewer. So far I like it a lot!
I've added buttons to convert the current image with a shortcut, rotating it to the left or right, for instance:
Image ROTATE=90 HERE REPLACE PRESERVEDATE
The button and shortcut work, but after pressing it the display does not refresh, i.e. the file data has changed, but the viewer does not show it. If I exit and restart the viewer, the new file is shown.