oh , yeah, I should probably say that I have hacked my 505 and put on it a much bolder and blacker font that kicks butt.
If you haven't hacked your 505 yet then you can improve it!
It's pretty easy just go to hack 505 forum or do a search here on hack 505 and you will find the info.
https://www.mobileread.com/forums/forumdisplay.php?f=141
p.s. at this point only the 505 is hackable the 300 and 600 is not hackable , so you got the right one if you want to improve the font and do other cool stuff on it. Good luck