computer-playbook/group_vars/all/13_theming.yml

global_theming:
  enabled: true
  css:
    colors:
      # General Colors
      base: "#001f3f"
      
      # Sucess Color
      success:  "#B2D3B2"
      # As the warning color – a light brown (earth)
      warning:  "#D2B48C"
      # For error messages (standard red)
      error:    "#DC3545"
      # As the info color – a very light blue (symbolizing the sky)
      info:     "#F0F8FF"
    filters:
      saturation_change:  70
      hue_shift:          0

# Global Theming is default enabled for all roles
# If you want to disable the global css for a role, set 
# global_theming_enabled: false
# in var/main.yml
global_theming_enabled: true