diff --git a/dotfiles/.config/gtk-2.0/gtkrc b/dotfiles/.config/gtk-2.0/gtkrc
new file mode 100644
index 00000000..e46ece9b
--- /dev/null
+++ b/dotfiles/.config/gtk-2.0/gtkrc
@@ -0,0 +1,3 @@
+gtk-theme-name="Betelgeuse"
+gtk-icon-theme-name="Betelgeuse"
+gtk-application-prefer-dark-theme="true"
diff --git a/dotfiles/.config/gtk-3.0/settings.ini b/dotfiles/.config/gtk-3.0/settings.ini
new file mode 100644
index 00000000..e8b54ad8
--- /dev/null
+++ b/dotfiles/.config/gtk-3.0/settings.ini
@@ -0,0 +1,4 @@
+[Settings]
+gtk-icon-theme-main=Betelgeuse
+gtk-theme-name=Betelgeuse
+gtk-application-prefer-dark-theme=true
diff --git a/dotfiles/.profile b/dotfiles/.profile
index a2681050..2052ed89 100644
--- a/dotfiles/.profile
+++ b/dotfiles/.profile
@@ -231,6 +231,10 @@ if [ -f "$HOME/.cargo/env" ]; then
   . "$HOME/.cargo/env"
 fi
 
+### GTK
+export XDG_CONFIG_HOME="$HOME/.config"
+export GTK2_RC_FILES="$XDG_CONFIG_HOME/gtk-2.0/gtkrc"
+
 ### Homebrew
 if [ -e /home/linuxbrew/.linuxbrew/bin/brew ]; then
   export HOMEBREW_PREFIX="/home/linuxbrew/.linuxbrew"