diff --git a/init.lua b/init.lua
index 0e1dc13..16d7bd4 100644
--- a/init.lua
+++ b/init.lua
@@ -19,6 +19,9 @@ local pi = math.pi
 local rad_180 = pi
 local rad_90 = pi / 2
 
+-- List of flags
+-- !!! IMPORTANT !!!
+-- !!! Always append new flags to the end to ensure backwards-compability.
 local flag_list = {
 	-- original flags (from first version)
 	"rainbow", "lesbian", "bisexual", "transgender", "genderqueer", "nonbinary", "pansexual", "asexual",