Finding your way around the Squash 3 interface
Squash 3 has a very simple, yet powerful user interface designed inside of a single window.
Squash 3 for macOS Main Interface
You can also import images by going to the "File" menu and choosing "Import Images…" and selecting the files you want to work with.
Highlight the image you wish to remove and press "delete", alternatively you can right-click and select "Remove" from the contextual menu.
The toolbar in Squash is always visible and contains useful actions to navigate the Interface.
Squash 3 Toolbar
Learn more about how each part of the main interface can be used.