The aliases were not the way I decided to go...

tcshrc.colors

@@ -72,13 +72,10 @@ set bright_white="$csi$ansi_bright;$ansi_white$ansi_color"
 # True colour support #
 #######################
 
-# The idea behind a true colour variable is that you run: `color_from_hex ff0077` and it expands to
+# The idea behind a true colour variable is that you run: `__build_sgr_code ff0077` and it expands to
 # a proper colour sequence for a 24-bit color.  The shell script which computes these will also attempt to
 # compute a rounded version of your color for use with 8-bit color and a weaker rounded form for use
-# with 3 and 4 bit color.
-
-# You process true colour by evaluating `__make_color_sequence` on the environment variable.
-alias __make_color_sequence ${CSHENV_DIR}/bin/__hex_to_ansi
+# with 3 and 4 bit color.  It does this based upon your terminal colour depth.  
 
 set sgr_reset="[`__build_sgr_code no-csi reset`m"