DENVER - Hillary Clinton is set to address the Democratic National Convention on Tuesday night, but the real action started a little bit earlier.

Clinton aides brought out on stage several different pantsuits, each of them a different color, to see how the color of each reacted to the lighting and backdrop at the convention site.

Presumably this was to help Clinton of New York decide which color of her trademark garment would be best to wear for her big performance.

(ABC News reported that Glamour magazine has a spread on Clinton this month with photos of her wearing “a rainbow of pantsuits from fire-engine red to light lilac.” The Glamour headline reads: “Hillary, we loved your pantsuits!”)

When Clinton came strolling out to check out the scene on Tuesday, she was wearing a light linen pant suit that showed up well in the lighting.

Clinton and her daughter, Chelsea, were all smiles as they tested the microphone at the podium from which they both will speak. It was clear they did not have to talk very loud to have her voice picked up and magnified throughout the pro basketball arena.

“Wow,” the former first lady said. “This is a really sensitive mic.”

Click here for more Reuters 2008 campaign coverage.

- Photo credit: Reuters/Shannon Stapleton (Clinton stands on stage during a walk-through in preparation for her speech at the 2008 Democratic National Convention)