Understanding Text/Background Colors when Creating New Theme Color

[Kara the Computer Tutor]

Hi,

I'm studying PowerPoint, and I'm confused about Creating New Theme Colors.
You're given the choice of changing the following colors:

Text/Background - Dark1
Text/Background - Light1
Text/Background - Dark2
Text/Background - Light2

I'm wondering what the difference is between 1 and 2 is and which color
choices will change the text and which will change the background. I see the
previews, but I don't understand how you can have two different backgrounds,
etc. Do I just have to play around with the colors to see what will be
affected? Or is there something I'm missing.

Thank you.
--
Kara
http://www.karathecomputertutor.com