diff --git a/modules/colors/base16-default.css b/modules/colors/base16-default.css
index 141ad31..3763f65 100644
--- a/modules/colors/base16-default.css
+++ b/modules/colors/base16-default.css
@@ -1,3 +1,5 @@
+/* colors from https://github.com/chriskempson/base16 */
+
 :root {
 	--base16-base00: #181818; /* default background */
 	--base16-base01: #282828; /* lighter background */
diff --git a/modules/colors/gruvbox.css b/modules/colors/gruvbox.css
index aaa76e7..4251627 100644
--- a/modules/colors/gruvbox.css
+++ b/modules/colors/gruvbox.css
@@ -1,3 +1,5 @@
+/* colors from https://github.com/morhetz/gruvbox */
+
 :root {
 	--gruvbox-orange:       #d65d0e;
 	--gruvbox-red:          #cc242d;