What does the settings icon say on hover? All I can see is "Pre...". I thought maybe it said something like "Press and hold to prestige". So, I held down on it (and maybe dragged off to the left) the this screen changed to a different color set: red bumpers, purple bottom bar. Glitch? Prestige beta? Also, I'm playing in web browser on PC.
The text is a weird bug from how its layered, there is a popup that shows when you gain a pristige, and it is stored underneath the buttons when not used. Sadly the settings menu isnt done yet. If ur able to send a screenshot of the red thing that would be amazing, because i have never seen it do something like that.
I just realized what happened, i had accidentally left a dev button of if you click settings a bunch it resets ur save data and stops the game because i needed to do that a lot to get some gameplay screenshots and footage, but since stopping the game doesnt close it it left some peices still on screen. The red is the collision for the plonks and the purple is the pristige popup.