app/assets/stylesheets/_variables.scss.erb
$primary-color: <%= AppConfig.theme[:primary_color] %>;
$accent-color: <%= AppConfig.theme[:accent_color] %>;
$text-on-primary-color: <%= AppConfig.theme[:text_on_primary_color] %>;
$text-on-accent-color: <%= AppConfig.theme[:text_on_accent_color] %>;