diff --git a/sh/morecolors b/sh/morecolors
new file mode 100644
index 0000000..cdd08bd
--- /dev/null
+++ b/sh/morecolors
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+# YES_ZSH
+# YES_BASH
+# NO_DASH
+# NO_ASH
+
+morecolors() { ### @- print all 256 colors that are available on most terminals.
+    # borrowed from leah2's dotfiles.
+    local i=
+    for i in {0..255}; do
+        printf '\e[48;5;%dm\e[38;5;15m %03d ' $i $i
+        printf '\e[33;5;0m\e[38;5;%dm %03d ' $i $i
+        [ "$(( i+1 <= 16 ? (i+1) %  8 : ( (i+1)-16) %  6 ))" = 0 ] && printf '\e[0m\n'
+        [ "$(( i+1 <= 16 ? (i+1) % 16 : ( (i+1)-16) % 36 ))" = 0 ] && printf '\e[0m\n'
+    done
+}
+
+[ -n "${preload+-}" ] || morecolors "$@"