Once you’ve selected a chart pop in, you might use these tools to apply colors and styles.
The Change Color menu let’s you quickly experiment with multi-color schemes as well as monochromatic schemes.
If you change a setting there, it will affect the options you see back in the Design tab.
If I undo that change, you’ll see the Design tab options revert to the original colors.
You’ll also find chart styles and colors on the Chart Styles icon when you select a chart.
Chart styles have generic names like Style 1, Style 2, Style 3, and so on.
Initially, your chart will be using Style 1.
If you apply a different style, you manually reset back to Style 1 at any time.
However, element visibility is not controlled by styles.