Thank you for your review, but I want to be honest with you:
I don't like such reviews!
First of all, you have not contacted me. If you have a feature request, why the heck do you write it in a review? A review is not the right place to ask for features!
The other thing can be achieved over the CSS file. Have you read the description or the project page?
"You may adjust the complete output of the plugin with the included CSS file authorinfobox.css. Create your individual author info box!"
So you can change the whole output of the box, not only the color...
Please do not write reviews before you don't have contacted the developer!
The only reason I didn't give this a five star rating is because video thumbnails aren't supported. :(
Thank you for the nice review ;)
Did you try disable "Clean (X)HTML" option on "Additional Settings" panel?