Links need a :focus style

I've never submitted a patch before, but I think this modest issue might be within my abilities... so I'll give it a go...

Here it is then: my first ever patch. Hope it's OK. It should just add a:focus on line 15 of omega/css/omega-text.css as follows:

a:active, a:focus {
  color: #202124;
  text-decoration: none;
  color: #000;
}

Actually, after further thought, I'm not sure I agree with my solution above. I think the problem is caused by the reset CSS files setting 'outline: 0'. This turns off the browser's highlighting of tab-focused links.

Should I roll a patch where the setting of the outline property is done a bit more selectively?

Just to update - I'm not going to be able to do any more on this, as I've moved away from using Omega for the time being.