Image Tricks Interface
An image you work on may be placed later on a colored background. To simulate this in Image Tricks, choose the background color in the program Preferences. This option may be especially helpful with images that have transparent parts.
To rotate an image in the preview, click the Rotate toolbar button. The direction of the rotation can be changed in the program Preferences.
The Rotate Left (Cmd-R) and Rotate Right (Opt-Cmd-R) commands can be found in the Edit menu.
The Edit menu has also Horizontal Flip (Shift-Cmd-H) and Vertical Flip (Shift-Cmd-V) commands.
Image orientation affects on how the selected filter is applied.