[Theme: Ryu] Link color is the same color as highlight on inserted text

Here’s an oddity I found with Ryu (which continues to astound). The link color is the same color as the highlight for inserted text, thus making the link disappear.

Disappears on Ryu:

http://www.johnbierly.com/wp-content/uploads/INSERT-RYU.jpg

Okay on Twenty Thirteen:

http://www.johnbierly.com/wp-content/uploads/INSERT-TWENTYTHIRTEEN.jpg

Thank you for your time.