Changing brush line thickness in Radiant

[Infernis]

I know, weird title but it's the best I could come up with.

Recently I changed to a 22 inch HD monitor. When I'm messing around in Radiant it's almost impossible to see the lines of the brushes I made. Is there a way to change their thickness to make them more apparent?

I've searched the helpfile and looked at all the buttons but no luck so far. I tried Googling it, but din't know a correct way to describe it. Below is an example shot of what I mean. It's probably something simple, but hell.

The thick fat line is an example to clarify how I want the normal line to look. I hope this makes sense

[obsidian]

Just change the theme/colour scheme. It won't change the thickness of the brush edges, but it will make them a different shade so that they stand out.

[Hipshot]

This is how I have it.
http://zfight.com/misc/images/radiantlines.jpg
I just tuned down the grid a lot. Much easier to see things and you still see the grid clearly.

[Infernis]

Where do I find these options? Because I checked preferences and stuff.

[cityy]

In radiant 1.4 and 1.5 you can find it at Misc/Colors in the menu bar.

[Infernis]

Aha, that's where all those settings are. You won't believe how long I looked for this. Ofcourse I saw colors in the menu but I never figured it would have had anything to do with what I wanted.

Assumptions Assumptions

Thanks alot guys!