Top toolbar
Explanation of icons starting from the left:
- 'Menu' - show main menu
- 'Open Documents' - show popover with all currently open documents, the orange badge says how many documents are currently open
- 'Undo' - tap to undo last action, long-press to show undo/redo popover
- 'Tool' - active tool, tap to open tools popover
- 'Brush' - current brush, tap to open brushes list/editor
- 'Layers' - show layers view
- 'Color' - current color, tap to open colors list/editor