This was a tough one...
I wasn't able to reproduce the blue and underline, but I do get the strikeout. For the blue and underline, go into the candidate tab of the setup -> race options dialog and make it right.
Strikeout is a problem though. I have looked at the 1.14 database and indeed the flag for strikeout is set in the candidate defaults. I have no idea how it got that way though. Its not a problem in 1.14 itself because 1.14 doesn't support strikeout, so the flag is just ignored. Once you upgrade to 1.17 though, you see the strikeout in all new candidates. Since GEMS doesn't have a strikeout button, there is no way to turn it off.
Fix in 1.17.16.