Greetings comrades. I have removed the w3img support from st due to this breaking our fps code in st. The old patch did allow drawing whenever some event came in. Copying over the whole buffer in one event is more efficient. If you need images to be displayed, keep a sane image viewer and run it through your tunneled X11.
If you need such a support, try to modify w3mimgdisplay to run separate escape codes, so some area is left over from being copied over. This is more leaner and easier than just overwriting areas the terminal knows nothing about. But this gets us back to the discussion of GUI extensions to the vt100 world. Don’t rape it even more. Sincerely, Christoph Lohmann