Ruler properties
Author: ffDiaporama Team

This dialog allows you to enable or disable rulers.

Edge of the screen | Corresponds to the edge of the screen.
TV margins | In ffDiaporama, the TV margins are of type "Title safe area" and are defined on 90% in width and 90% in height, for all the project geometries.
Centre of the screen | Corresponds to the center of the screen.
Unselected blocks | For all the objects which are not a part of the selection, create rulers for the top, bottom, left and right edges of blocks as well as for the centers of blocks.

#### Remarks:

- Rulers can be activated or deactivated one by one.
- When a ruler is activated, the mouse is attracted towards this ruler. This is valid as well for the movements of blocks as for the resizing (movements of the handles).
- TV margins rullers are not available for thumbnails editing.

## See also

| Description of TV margins and overscan