diff --git a/.gitmodules b/.gitmodules
index 2313d22..a8f41fd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "ext/imsky/wordlists"]
 	path = ext/imsky/wordlists
 	url = https://github.com/imsky/wordlists
+[submodule "ext/jothepro/doxygen-awesome-css"]
+	path = ext/jothepro/doxygen-awesome-css
+	url = https://github.com/jothepro/doxygen-awesome-css.git
diff --git a/ext/jothepro/doxygen-awesome-css b/ext/jothepro/doxygen-awesome-css
new file mode 160000
index 0000000..c085b88
--- /dev/null
+++ b/ext/jothepro/doxygen-awesome-css
@@ -0,0 +1 @@
+Subproject commit c085b886e38d47c30c7cad0865d641cdf5f2df86