diff --git a/.gitmodules b/.gitmodules
index 0efb5be..ba92a09 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -2,3 +2,6 @@
 	path = lsplant/src/main/jni/external/dex_builder
 	url = https://github.com/LSPosed/DexBuilder.git
 	branch = master
+[submodule "docs/doxygen-awesome-css"]
+	path = docs/doxygen-awesome-css
+	url = https://github.com/jothepro/doxygen-awesome-css.git
diff --git a/docs/doxygen-awesome-css b/docs/doxygen-awesome-css
new file mode 160000
index 0000000..4cd6230
--- /dev/null
+++ b/docs/doxygen-awesome-css
@@ -0,0 +1 @@
+Subproject commit 4cd62308d825fe0396d2f66ffbab45d0e247724c
diff --git a/docs/doxygen.cfg b/docs/doxygen.cfg
index e9f2546..824a20b 100644
--- a/docs/doxygen.cfg
+++ b/docs/doxygen.cfg
@@ -1255,7 +1255,7 @@ HTML_STYLESHEET        =
 # list). For an example see the documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_EXTRA_STYLESHEET  =
+HTML_EXTRA_STYLESHEET  = docs/doxygen-awesome-css/doxygen-awesome.css
 
 # The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
 # other source files which should be copied to the HTML output directory. Note
@@ -1558,7 +1558,7 @@ DISABLE_INDEX          = NO
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-GENERATE_TREEVIEW      = NO
+GENERATE_TREEVIEW      = YES
 
 # When both GENERATE_TREEVIEW and DISABLE_INDEX are set to YES, then the
 # FULL_SIDEBAR option determines if the side bar is limited to only the treeview