To change the color of your text, click on Edit Theme>Typography>Text Colors
Understanding your set up
The tool will change your colors depending on the background color of your slide. If you have a light background color, it will use the dark color you set here for your text. If you have a dark background, it will use the light color you set here for your text.
When customizing your Text Colors, keep in mind that the color on the left should be a dark color. The color on the right should be a light color.
Primary Vs Secondary
Primary Text color: This controls primary text like heading text, chart text, and timeline lines
Secondary Text Color: This controls secondary text elements like body text, chart lines, and labels.
Primary Text Example
When your background is set to a light color (white) and your primary color is set to a dark color (black)
Secondary Text Example:
Dark Color (purple) Light background (white)
Light color (green) Dark background (black)