0.2.22

Added

• Redo: Ctrl+Y or Ctrl+Shift+Z (Cmd on Mac), plus new ↶ / ↷ buttons on the Brackets toolbar. While you're typing in a text box, these undo and redo your typing instead.
• Expanded instructions: the Brackets ? button now covers getting started, selecting, building brackets, labels and main point, undo/redo, moving around, and the header buttons.
• ? buttons on Text Flow and Sentence Flow listing the editor's keyboard shortcuts.
• Shift+Tab in the flow tabs removes the tab just before the cursor.
• The Propositions sidebar's width is now remembered.

Changed

• Reset All now also clears Text Flow and Sentence Flow, and Ctrl+Z brings them back.
• Export PNG uses your theme's background and colors, leaves selection highlights out of the image, and asks whether to replace an existing PNG or keep both.
• Clearer message when a two-node bracket can't be made from the current selection.

Fixed

• Changes could be written to the file one step late; they're now saved right after each change.
• Drag-reordering could leave single-node bracket arms on the wrong rows.
• Panning could get stuck if the mouse was released outside the diagram.
• Dialogs and the label editor now close with Esc or a click outside.
• Tab in the paste box or label editor no longer indents the selected proposition.
• A damaged .da file now shows a warning and is left unchanged instead of opening blank and being overwritten.
• Logical relationships reference: corrected title (it lists 20) and the Action-Manner example reference (Eph 4:1-2).