Codechange: Be more selective when marking windows dirty #9204
Motivation / Problem
Whilst debugging window layouts I noticed that there some places where whole windows are marked dirty when in fact only one widget needs to be drawn. This is not really an issue but I had an itch.
Some actions that previously marked a window dirty now only mark the relevant widget dirty.
Fairly sure this is no where near all cases...
Checklist for review
Some things are not automated, and forgotten often. This list is a reminder for the reviewers.