It’s funny you mention that. That character in the show is the nerdy, uptight, smart character in the group. Is it coincidence that the smart girl in class is matching the periodic table on the wall… ? 
In green I circled highlights where the orange was not pushed all the way to upper tones - they are still mostly white (so don’t just apply orange to upper tones indiscriminately). See the post from @anon41087856 about this same subject for more info too: