An image of four European traffic signals, one of each basic type, all containing the image of a banana. On top it reads "European traffic signals explained" First is square and blue, with a white banana. It says "You could eat a banana" Second is round and blue, with a white banana. It says "You must eat a banana" Third is white round with red border and a black banana. It says "You can't eat a banana" Fourth is a white triangle with red border and a black banana. It says "Caution, a banana!"
https://files.mastodon.online/media_attachments/files/114/275/365/826/071/511/original/800c9ab758c6213e.jpg