I found a thread with some intructions for adding images to surfaces, but they were for ProE menus. I thought I'd share how to do it in Creo - it really gives your robot model a "pop". Basically, you are going to create an appearance like a color or a texture and then you will apply it to a surface on a part. Here's the step by step:
Select the arrow next to the Appearance Gallery Icon >>More Appearances – Appearance Editor comes up. Select the Map tab, go down to Decal and select “Image” from the pull down menu. Select the box to the left and a file selection menu will come up. In the select type pull down menu you can specify which type of image file to look for, navigate to the folder and file containing the image file you want to use, then select it. This will become an appearance choice that you can apply to a surface. It auto-sizes the image to fit the entire surface – there is a choice to edit decal placement but it seems to be grayed out and I haven’t been able to get it to work – any suggestions? I guess you could create a very thin part that is actually a decal and then put it on where you want it in the assembly. As a work around, I create the entire image with all the logos in PowerPoint to the correct scale (set slide size to the size you want and scale the individual images to it) and then save the whole slide as a jpeg.
Here's what it looks like on our robot (yes I know you can only hold 3 balls - the top one is to get the shooter spacing correct).
