diff --git a/.config/zsh/functions/ansi-colours b/.config/zsh/functions/ansi-colours
index 8625313..e2c3178 100644
--- a/.config/zsh/functions/ansi-colours
+++ b/.config/zsh/functions/ansi-colours
@@ -1,5 +1,6 @@
 #!/usr/bin/env zsh
 # Prints ANSI colours along with their escape codes.
+# https://tintin.mudhalla.net/info/256color/
 
 print "\e[1;97mClassic colours:\e[0m"
 
@@ -27,4 +28,8 @@ for n in {0..255}; do
 done
 print -c ${colours}
 
-print "\n\e[1;97m256 colour background:\e[0m 48 instead of 38   \e[1;97mReset: \e[0m\\\e[0m"
+print "\n\e[1;97m256 colour background:\e[0m 48 instead of 38"
+
+print "\e[1;97mTrue colour:\e[0m \\\e[38;2;\e[0;31mR\e[0m;\e[0;32mG\e[0m;\e[0;34mB\e[0mm and \\\e[48;2;\e[0;41mR\e[0m;\e[0;42mG\e[0m;\e[0;44mB\e[0mm"
+
+print "\e[1;97mReset: \e[0m\\\e[0m"