demo:
- from the menu, select file ⇒ open
- from the menu, select filter ⇒ edge detect
- from the menu, select filter ⇒ gaussian blur
- on the right, drag gaussian blur above edge detect
- from the menu, select filter ⇒ negate
- on the right, ctrl+click edge detect
actions
to edit actions:
- drag&drop to reorder
- double-click to edit entry
- ctrl+click to toggle entry
- ctrl+shift+click to remove entry
- open must be first
- in many cases, order matters
Imagine