@AlexVieiradeOl3 I'm sorry to hear you're having trouble with that particular puzzle. Is there a colour change that'd make the tiles stand out more effectively for you? We're unlikely to be able to do a contrast slider anytime soon, but may be able to repaint the affected tiles.
@thedegensniper While it could be changed as you describe, it's really not a change I'd expect us to do to that established boss now. The spear vulnerability seems likely to stay instead.