Graphics file created by LEGO MINDSTORMS EV3, a program that enables you to create and program LEGO robots; contains an image edited by the Image Editor tool in the LEGO MINDSTORMS EV3 application; includes text boxes, shapes, drawings, and other editing tools.

To create the RGF file, select Tools → Image Editor, open your image or create an image, click the floppy disk icon, name the image, and click Ok. To see your RGF file, go to your project, click the wrench icon, and select the "Images" tab. To export the RGF file, click the wrench icon in the top-left of the Project screen in the application, select your RGF file under the "Images" tab, click Export in the bottom of the window, name your file, choose the save location, and click Save. You cannot double-click the file to open it, you must import it. To import the RGF file, click the wrench icon in the top-left of the Project screen in the application, select the "Images" tab, click Import in the bottom of the window, navigate to your RGF file, select it, and click Open.