To switch to another image, click on the thumbnail image. That image will be opened in the Editing Window and its thumbnail updated with the highlighting.
If there isn't enough room to show thumbnails for all the open images, arrows appear at the sides of the
The downward pointing arrow at the right of the
When clicked, this button opens a scrollable list of all the open images along with their filenames.
Clicking on an entry in this list has the same effect as clicking on a thumbnail in the
Close an image by clicking on it's thumbnail then clicking on the red 'X' that appears in the upper right corner of the thumbnail. This is a convenient shortcut for the menu command.
Another method of closing an image is to middle click anywhere on the thumbnail image in the
Close an image via the keyboard with
Images that have unsaved changes have a tiny orange asterisk in the upper-left corner of the thumbnail image (see image above). When attempting to close an image which has unsaved changes, a prompt will ask you to confirm the action with options: Save, Don't Save or Cancel.