Yeah, I'm well aware that the orange is a bit problematic as it can be confused with both yellow and red. But that's why the icons are there too. It's never great to only rely on colors to pass on information as different forms of color blindness are way more common than most people think.
Hmm, didn't really think too hard to the wordings and explanations. I guess I thought that "closing an area" would be clear enough as that's basically the only mechanic you keep doing ie. when squares of one color are surrounded by walls or other colors (and the area is scored). And I thought "loop shape" was self explanatory too, basically a shape with no extruding pointy tips and a hole in the middle.
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