Look at the screenshot below: It's working in so far as the first line is indeed ignored, but I would find it helpful if the decision "ignore case" were also respected as to the color coding (the two "vertical lines"):

This would make the color coding more logical, because in line 1 letters with different case are not marked, whereas in all other lines letters with different case ARE marked. This is inconsistent.
"ignore special characters" and the other "ignore"-options would have to be adjusted in the same matter.
Thanks for looking into that.