I would like to modify how mime/html entities are transformed to text in Wanderlust. At the very least removing background colors and excessive spacing. Is there any simple way to do so?
Following @lawlist's idea of digging through the code, I have found one possible answer. It is not entirely satisfactory, but good enough for the emails I have received so far. This answer relies on using Emacs' Simple Html Renderer and removing all the fancy color rendering. It is a simple tweak
;; Rendering of messages using 'shr', Emacs' simple html ;; renderer, but without fancy coloring that distorts the ;; looks (setq mime-view-text/html-previewer shr shr-use-fonts nil shr-use-colors nil)
I have not yet managed to display embedded images. I suppose this requires actual tweaking of code.
Edit: it seems embedded images as in tags are shown, but not always when they are in attachments.