Ok. I get now that "lur" means bright/smart and that was why it was introduced with a lightbulb for the graphic. But "clever" has sneaky connotaions and is hardly ever used the same way in English as "bright/smart" are.
Is there another word to use instead of "lur" that would give that same connotation? Because when I saw the word "clever" introduced, I picked out the politician instead of the lightbulb for this exact same reason. A lightbulb is bright, not clever. A politician may be clever, but not bright.