[TRACKER] fltk widgets tracker

[KaruroChori]

Note

This issue will be pinned and is constantly revised as new proposals are made.

Full tracker for any fltk widget which must be integrated (and some custom but still based on fltk).
For complex cases and proposals, let's have separate issues linked here.

Flow containers

• flex
• grid
• scroll
• pack

Form widgets

Custom widgets

• markdown: display a native markdown document (possibly including other widgets as xml)
• ui-action: run actions on the ui simulating a user. Used for automation and for documentation purposes