WCAG compatibility issues

Hi,

Thanks for the great plugin!

I used it on my site. I would like my site to be 100% WCAG AA compliant. All else is good except the issues within this plugin. I can fix them if somehow I can override the template being used. So, two questions

1. Can we override the html template in my theme? If so, how?
2. If we cant do (1) Can I patch the plugin and send you so you can accommodate it?

Thanks