The headrest of a seat in an EasyJet plane. It is made of square symbols in rows and columns, each square can have an outer grey border ir not; then an inner orange border, which is either two adjacent edges of the square (any of the corners of the square), or all of the edges; and then, for some of the symbols without the outer grey border, the interior of the square is filled up in grey.
https://cdn.masto.host/blobcoffee/media_attachments/files/113/566/803/200/601/738/original/49d1a5eb0c20a8ee.jpeg