diff --git a/roles/common/defaults/main.yml b/roles/common/defaults/main.yml
index 65a7ef0de0758a98541dc78b86dfd98d0cb8a088..985f053802953c6372fb484b83b2e4888cf80955 100644
--- a/roles/common/defaults/main.yml
+++ b/roles/common/defaults/main.yml
@@ -6,4 +6,26 @@ os_users: []
 os_groups: []
 ca_certificates: {}
 incoming_connection_limit: 3/second
-incoming_connection_limit_burst: 9
\ No newline at end of file
+incoming_connection_limit_burst: 9
+prompt_colour: none
+prompt_id: null
+
+# Internal use only.
+prompt_colour_mapping:
+  black: "0;30"
+  red: "0;31"
+  green: "0;32"
+  brown: "0;33"
+  blue: "0;34"
+  purple: "0;35"
+  cyan: "0;36"
+  light_gray: "0;37"
+  dark_gray: "1;30"
+  light_red: "1;31"
+  light_green: "1;32"
+  yellow: "1;33"
+  light_blue: "1;34"
+  light_purple: "1;35"
+  light_cyan: "1;36"
+  white: "1;37"
+  none: "0"
\ No newline at end of file