Adjustment of the color scheme used in a CC6 mobile app can be made by editing the file:
res/values/colors.xml
An example of this file is displayed below:
The color names defined in this file allow a developer to override one or more of the standard color definitions. The CC6 color scheme is loosely based on an externally defined scheme. Further information is available at: https://material.io/design/color/the-color-system.html#color-theme-creation.