Theme Appearance Settings missing Color Scheme

tamuren
I am attempting to style my Opigno site. Based on the user manual, there should be a color scheme option available in the theme's appearance settings. It is absent on my website. How do I get access to the color scheme? Here is a screenshot illustrating the problem: http://imgur.com/edit
tamuren

To enable the color scheme in

To enable the color scheme in a sub-theme, you need to follow the instructions outlined here: https://www.opigno.org/en/forum/support/color-scheme-subtheme