Sequence A:
Background Color -> Text Color -> Heading(H1) -> Font Family -> Increase Font Size
Sequence B:
Line Height -> Direction(RTL/LTR) -> Indent/Outdent on multi-paragraph selection
Sequence C:
Bullet List -> Numbered List -> Checklist -> Checklist(toggle back) on multi-paragraph selection
Sequence D:
Mixed Formatting -> Clear Formatting with multi-block + inline edge cases
Sequence E:
Merge Tag insert with caret + stale selection fallback
Sequence F:
Page Break insert/select/delete/collapse edge-case coverage
Sequence G:
Footnote insert/renumber/select/delete edge-case coverage
Sequence H:
History setText/setAttribute + undoDom/redoDom + native undo/redo
Sequence I:
Block plugins (textAlignment/lineHeight/direction/indent) undo/redo round-trip
line one for formatting checks
line two for formatting checks
line three for formatting checks
Waiting to run test...