
Edit app preview titles in iMovie on Mac
iMovie includes a set of titles designed to showcase apps in action, available only for app preview projects. Some of the titles are named to indicate specific functionality:
- Scale: These titles shrink a clip and place a title above or below it. 
- Bar: These titles include a text block and color bar. Some of the text blocks can be positioned vertically. 

You add app preview titles and edit title text in the same way as in a standard movie project. For more information, see Add titles in iMovie on Mac and Modify titles in iMovie on Mac.

Format app preview titles
- In the iMovie app  on your Mac, double-click an app preview title in the timeline. on your Mac, double-click an app preview title in the timeline.- To open your app preview in the timeline, double-click it in Projects view. - The text field in the title is highlighted for editing, and the title controls appear above the viewer.  
- Do any of the following: - Change the font: Click the Font pop-up menu and choose a font. - To choose from additional fonts using the macOS Fonts window, choose Show Fonts (the last option in the Font pop-up menu). 
- Change the size of the text: Click the Size pop-up menu, to the right of the Font pop-up menu, and choose a font size. 
- Change the alignment of the text: Click one of the text alignment buttons. 
- Change the color of the text: Click the Text color well, and select a color from the Colors window. 
- Change the color of the title’s bar or background: Click the Bar color well or the Background color well, and select a color from the Colors window. 
 - Note: Depending on the title style you chose, some title settings may not be available. 
- When you’re satisfied with the changes, click the Apply button  in the title controls. in the title controls.
Reposition a movable text bar
App preview titles with “movable” in the name use a special control to position the text.
- In the iMovie app  on your Mac, double-click a movable app preview title in the timeline. on your Mac, double-click a movable app preview title in the timeline.- To open your app preview in the timeline, double-click it in Projects view. - The text field in the title is highlighted for editing, and the title controls appear above the viewer.  
- Drag the bar to position the text. 