Each person's individual astrological birth chart has many layers—from the planets and signs to the houses and aspects—that help us understand our personality and life path. Color is another element ...

Microsoft Excel gives you a boatload of options for changing the format of color charts. You can change the layout of a chart, then customize that layout to the format you prefer. For example, you can ...

I often use Excel's doughnut chart to track progress, but the static colors always felt limited. So, I figured out how to make it dynamically shift from red to orange to green, complete with a center ...

Clear, informative PowerPoint slides increase the effectiveness of your presentation. A legend helps people understand what you're referring to in a graphic. You can create color-coded legends in ...

Two folds from an Astrolin Color Card pamphlet by Établissement Georget Fils Peintures Laquées et Vernis, Chantenay-Lès-Nantes (c. 1906), 6 3/10 x 3 3/4 inches (image courtesy Bibliothèque Forney, ...