diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/__main__.py b/src/versions/solarfm-0.0.1/SolarFM/solarfm/__main__.py
index 3105637..0979bdc 100644
--- a/src/versions/solarfm-0.0.1/SolarFM/solarfm/__main__.py
+++ b/src/versions/solarfm-0.0.1/SolarFM/solarfm/__main__.py
@@ -11,7 +11,7 @@ tracemalloc.start()
 
 # Lib imports
 import gi
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 from gi.repository import Gtk
 
 # Application imports
diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/shellfm/windows/view/icons/mixins/DesktopIconMixin.py b/src/versions/solarfm-0.0.1/SolarFM/solarfm/shellfm/windows/view/icons/mixins/DesktopIconMixin.py
index 2d3c30b..e75c406 100644
--- a/src/versions/solarfm-0.0.1/SolarFM/solarfm/shellfm/windows/view/icons/mixins/DesktopIconMixin.py
+++ b/src/versions/solarfm-0.0.1/SolarFM/solarfm/shellfm/windows/view/icons/mixins/DesktopIconMixin.py
@@ -4,7 +4,7 @@ from os.path import isfile
 
 # Gtk imports
 import gi
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 from gi.repository import Gtk
 
 # Application imports
@@ -21,7 +21,7 @@ class DesktopIconMixin:
             if "steam" in icon:
                 name         = xdgObj.getName()
                 file_hash    = hashlib.sha256(str.encode(name)).hexdigest()
-                hash_img_pth = self.STEAM_ICONS_PTH + "/" + file_hash + ".jpg"
+                hash_img_pth = f"{self.STEAM_ICONS_PTH}/{file_hash}.jpg"
 
                 if isfile(hash_img_pth) == True:
                     # Use video sizes since headers are bigger
@@ -30,7 +30,7 @@ class DesktopIconMixin:
                 exec_str  = xdgObj.getExec()
                 parts     = exec_str.split("steam://rungameid/")
                 id        = parts[len(parts) - 1]
-                imageLink = self.STEAM_BASE_URL + id + "/header.jpg"
+                imageLink = f"{self.STEAM_BASE_URL}{id}/header.jpg"
                 proc      = subprocess.Popen(["wget", "-O", hash_img_pth, imageLink])
                 proc.wait()
 
@@ -57,9 +57,9 @@ class DesktopIconMixin:
 
         for (dirpath, dirnames, filenames) in os.walk(path):
             for file in filenames:
-                appNM = "application-x-" + icon
+                appNM = f"application-x-{icon}"
                 if icon in file or appNM in file:
-                    alt_icon_path = dirpath + "/" + file
+                    alt_icon_path = "{dirpath}/{file}"
                     break
 
         return alt_icon_path
diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/Controller.py b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/Controller.py
index 5354c5e..bd5e077 100644
--- a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/Controller.py
+++ b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/Controller.py
@@ -3,7 +3,7 @@ import sys, traceback, threading, signal, inspect, os, time
 
 # Lib imports
 import gi
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 from gi.repository import Gtk, GLib
 
 # Application imports
diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/KeyboardSignalsMixin.py b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/KeyboardSignalsMixin.py
index b397027..1c8420c 100644
--- a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/KeyboardSignalsMixin.py
+++ b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/KeyboardSignalsMixin.py
@@ -3,8 +3,8 @@ import re
 
 # Lib imports
 import gi
-gi.require_version('Gtk', '3.0')
-gi.require_version('Gdk', '3.0')
+gi.require_version('Gtk', '4.0')
+gi.require_version('Gdk', '4.0')
 from gi.repository import Gtk, Gdk
 
 # Application imports
diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/ShowHideMixin.py b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/ShowHideMixin.py
index 49b29d8..9981a18 100644
--- a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/ShowHideMixin.py
+++ b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/ShowHideMixin.py
@@ -2,8 +2,8 @@
 
 # Gtk imports
 import gi
-gi.require_version('Gtk', '3.0')
-gi.require_version('Gdk', '3.0')
+gi.require_version('Gtk', '4.0')
+gi.require_version('Gdk', '4.0')
 from gi.repository import Gtk, Gdk, Gio
 
 # Application imports
diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/TabMixin.py b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/TabMixin.py
index 51960dd..7e341aa 100644
--- a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/TabMixin.py
+++ b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/TabMixin.py
@@ -3,8 +3,8 @@ import os
 
 # Lib imports
 import gi
-gi.require_version('Gtk', '3.0')
-gi.require_version('Gdk', '3.0')
+gi.require_version('Gtk', '4.0')
+gi.require_version('Gdk', '4.0')
 from gi.repository import Gtk, Gdk
 
 # Application imports
diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WidgetFileActionMixin.py b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WidgetFileActionMixin.py
index 96f503d..16bdc69 100644
--- a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WidgetFileActionMixin.py
+++ b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WidgetFileActionMixin.py
@@ -3,7 +3,7 @@ import os
 
 # Lib imports
 import gi
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 from gi.repository import Gtk, GObject, Gio
 
 # Application imports
diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WidgetMixin.py b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WidgetMixin.py
index 52b9a0d..d40f044 100644
--- a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WidgetMixin.py
+++ b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WidgetMixin.py
@@ -4,8 +4,8 @@ import os, threading, subprocess
 # Lib imports
 import gi
 
-gi.require_version("Gtk", "3.0")
-gi.require_version('Gdk', '3.0')
+gi.require_version("Gtk", "4.0")
+gi.require_version('Gdk', '4.0')
 from gi.repository import Gtk, Gdk, GLib, Gio, GdkPixbuf
 
 # Application imports
diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WindowMixin.py b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WindowMixin.py
index aa8687f..16e5614 100644
--- a/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WindowMixin.py
+++ b/src/versions/solarfm-0.0.1/SolarFM/solarfm/signal_classes/mixins/WindowMixin.py
@@ -5,7 +5,7 @@ from os.path import isdir, isfile
 
 # Lib imports
 import gi
-gi.require_version('Gdk', '3.0')
+gi.require_version('Gdk', '4.0')
 from gi.repository import Gdk, Gio
 
 # Application imports
diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/utils/IMG_20210603_222549659.jpg b/src/versions/solarfm-0.0.1/SolarFM/solarfm/utils/IMG_20210603_222549659.jpg
new file mode 100644
index 0000000..4a4a959
Binary files /dev/null and b/src/versions/solarfm-0.0.1/SolarFM/solarfm/utils/IMG_20210603_222549659.jpg differ
diff --git a/src/versions/solarfm-0.0.1/SolarFM/solarfm/utils/Settings.py b/src/versions/solarfm-0.0.1/SolarFM/solarfm/utils/Settings.py
index 3dc368f..245c31d 100644
--- a/src/versions/solarfm-0.0.1/SolarFM/solarfm/utils/Settings.py
+++ b/src/versions/solarfm-0.0.1/SolarFM/solarfm/utils/Settings.py
@@ -4,8 +4,8 @@ from os import path
 
 # Gtk imports
 import gi, cairo
-gi.require_version('Gtk', '3.0')
-gi.require_version('Gdk', '3.0')
+gi.require_version('Gtk', '4.0')
+gi.require_version('Gdk', '4.0')
 
 from gi.repository import Gtk as gtk
 from gi.repository import Gdk as gdk
diff --git a/user_config/usr/share/solarfm/Main_Window.glade b/user_config/usr/share/solarfm/Main_Window.glade
index 9878a5a..def90a7 100644
--- a/user_config/usr/share/solarfm/Main_Window.glade
+++ b/user_config/usr/share/solarfm/Main_Window.glade
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- Generated with glade 3.38.2 -->
 <interface>
-  <requires lib="gtk+" version="3.22"/>
+  <requires lib="gtk+" version="3.24"/>
   <object class="GtkAboutDialog" id="about_page">
     <property name="can-focus">False</property>
     <property name="border-width">5</property>