The Project pane of Motion Preferences contains settings for project and layer duration and other project options. There are two categories of controls: Default Project Settings and Still Images & Layers.
These controls in the Project pane of Motion Preferences determine default values for new projects.
Note: These settings only take effect in projects created after the preferences are set and Motion is quit and reopened. To change the settings of an open project, use the Properties Inspector instead (press Command-J, or click the Project object in the Layers list, then click Properties in the Inspector).
Note: To render a new background color into your final output, you must choose Solid from the Background Color pop-up menu in the Properties Inspector (press Command-J).
These settings in the Project pane of Motion Preferences control the default duration, placement, and size of still images and imported layers, as well as layers created in Motion, such as text, shapes, and masks.
Note: For more information on the differences between the Large Stills options, see Using High-Resolution Still Images.
The Large Stills pop-up menu has two options: