From the video on YouTube there are just a couple smaller adhesive tabs in the corners, and the knobs hold it in place.
I prefer these to stickers, frankly, as they’re meant to sit on top and are less likely to peel / get ugly after a while.
I ordered the Schofield version. https://www.oversynth.com/product-page/schofield-overlay-for-elektron-model-samples-oversynth
Funny how the sample section is gerrymandered, though perhaps not as bad as the sequencer. Looks like an Indiana State Senate district.
But mostly, the black around the function button will help me much more, as will the larger texts in dim light.
They do now! https://www.oversynth.com/product-page/max-black-overlay-for-elektron-model-samples
I’m not too into the green, bits, however.