Choose Resource Image dialog box
Specify the resource and ID for a graphic associated with a property in the Form designer.
Dialog Box Options
Resource DLL file name
Enter the name of the .DLL file that contains the graphic you want to use. Use the current file, or select a file by clicking to display an Open dialog box.
ID
The identification string for the image in the .DLL file.
Image
The image named by the ID string in the ID field.
How to get there: In the Inspector, select an Image component with a dataSource property and click its wrench tool.