After my eyes got tired from looking at the screen too long, I found a macro that will let me easily change the font size in Visual Studio .Net. The macro is here: Zooming your code in Visual Studio .NET
I wish VS.Net provided some styles or themes with different color schemes. The plain white gets old. I looked at modifying the colors. But the settings were too detailed. It would take hours or days to get a good looking set of colors and fonts setup.