As Kayte already pointed out, we don't have that option so that people do homework, grade homework and do the peeves and Fred & George riddles. We do not want WoP or WoX to become pay to win sites, so that everyone can enjoy all aspects of the site similarily. That's why we sadly have to decline your request. 

Thanks for your comment! It's the first time we're hearing about this, so we asked around a bit. Most people find the colour good and can recognize it without any problem, some even find it too bright. It seems as if the colour appears differently on very laptop, depending on your contrast settings. So we suggest changing the settings of your screen a bit to avoid this problem (: