Hey guys, It sounds like a silly question, but I never seen explaination for what and why, some Profilers (rack and "toaster" unpowered or not) have their rotating button in grey or black.
Is it an obvious point to spot which are older than others ? Mine (an used one, from 2019 after his factory reset), is grey... and just seen lots of others in black... what's the point ?
Thank's in advance .