Arrow keys. I wrote about my pictures in German and English. Some of the ideas overlap. I hope you enjoyed my project! I have made a pixelated images project like this before. It's really fun, because you can "save" these pictures of lists of about two thousand entries. So the project loads faster and actually you can manipulate the date quite a bit. But I didn't do any manipulation. But yeah you can treat the images like matrices, where each entry is actually three numbers -- red, blue, and green. I made a project on the notation of colors, too. It's kind of embarrassing how much I know about this. But I also know very little. I hope you enjoyed my writing about the pictures! I always love when some context is given. I make these projects because I need practice with writing. It also makes me happy to see the final product.