I capitalize Her, She, Hers, for the same reason that religions capitalize their deity. God versus god. To me, a pretty little girl is above the status of a god. So, She becomes the most honored way I have to indicate that. (I hope you don't mind.)

Red in my signature. Actually, the moderators did this. So, if you want to do something like that in a signature for you, just let them know. Otherwise:

There is HTML that allows you to change colors here.

"〈font size="3" color="red"〉This is some text!〈/font〉" gets you

This is some text!

or

"〈font size="5" color="blue"〉This is some text!〈/font〉"

This is some text!

The angle brackets are used, not parentheses. < and >