diff --git a/docs/Linux_Post_Install.md b/docs/Linux_Post_Install.md
index bbdaf3ce..062e79e4 100644
--- a/docs/Linux_Post_Install.md
+++ b/docs/Linux_Post_Install.md
@@ -8,7 +8,7 @@
     - [🛜 Bluetooth](#-bluetooth)
   - [💅 Cosmetics](#-cosmetics)
     - [🖼 Lock Screen](#-lock-screen)
-    - [💄 Qt5](#-qt5)
+    - [💄 Qt5 \& GTK](#-qt5--gtk)
     - [👋 SDDM greeter](#-sddm-greeter)
     - [☢️ GRUB Theme](#️-grub-theme)
     - [📦 Pacman](#-pacman)
@@ -122,7 +122,7 @@ KernelExperimental = true
 betterlockscreen -u ~/wallpapers/dual/pacman.jpg --display 1 --span
 ```
 
-### 💄 Qt5
+### 💄 Qt5 & GTK
 
 ```bash
 sudo vim /etc/environment
@@ -130,6 +130,7 @@ sudo vim /etc/environment
 
 ```bash
 QT_QPA_PLATFORMTHEME=qt5ct
+GTK_THEME=Matcha-dark-azul # Change if GTK theme is different
 ```
 
 ### 👋 SDDM greeter
diff --git a/home/.config/gtk-3.0/settings.ini b/home/.config/gtk-3.0/settings.ini
index e89053b7..24b1cf93 100644
--- a/home/.config/gtk-3.0/settings.ini
+++ b/home/.config/gtk-3.0/settings.ini
@@ -1,4 +1,5 @@
 [Settings]
+gtk-application-prefer-dark-theme=1
 gtk-icon-theme-name=Papirus-Dark
 gtk-theme-name=Matcha-dark-azul
 gtk-cursor-theme-name=Breeze_Light
diff --git a/home/dots/personal/.exports b/home/dots/personal/.exports
index d5763ecd..aff58f27 100755
--- a/home/dots/personal/.exports
+++ b/home/dots/personal/.exports
@@ -7,6 +7,9 @@ export TERMINAL=alacritty
 # export GDK_DPI_SCALE=0.5
 export QT_AUTO_SCREEN_SCALE_FACTOR=1
 
+# Set GTK Theme env variable from settings
+export GTK_THEME=$(grep "gtk-theme-name" ~/.config/gtk-3.0/settings.ini | awk -F "=" '{print $2}')
+
 export PATH=~/.local/bin:$PATH
 export PATH=~/bin:$PATH