Set the template's default colors by setting the options under Global Settings -> Color Scheme.
Primary Color
Control the main accent color used in the template.
By default, this will also set the button colors, unless the button colors are overwritten in the general settings level or in the individual block level.
Body Text Colors
Text Dark - This is the main text color used for Light templates
Text Light - This is the main text color used for dark templates or in dark sections
Background Colors
Set your template's background colors