…erleaved fold and unfold states and an undo or redo is done.
In Getting Started project – remove useless whitespace – replace “an arrow” (<) with “->”
Windows may not have glyphs for it and simpler Unicode arrows don't look good. Use simple "..." text instead (vertically aligned so it's more like an icon than text).
removing some unnecessary CSS
… when the file is moved to trash.
…ing file or project