Colour Picker tool in High Sierra
My brain is so dead at the moment, I can't even think of its proper name, but I'm sure you understand what I mean, y'know the thing with the coloured pencils - well, it appears to have vanished because I can't find it! I know it can't be accessed as a standalone tool, but I can't find how to access it from within Preview or Photos - and it's something I use very regularly.
Has it gone - I'll be gutted if it has - or am I just having a mental aberration...?
Any help, folks...?
MacBook Pro TouchBar and Touch ID, macOS High Sierra (10.13.2)