diff --git a/src/wallman_lib.py b/src/wallman_lib.py
index a811079..f8034e9 100644
--- a/src/wallman_lib.py
+++ b/src/wallman_lib.py
@@ -1,5 +1,6 @@
 from sys import exit
 from os import chdir, getenv, system
+from typing import List
 import logging
 import tomllib
 from datetime import datetime, time
@@ -24,6 +25,7 @@ class _ConfigLib:
         self.config_wallpapers_per_set: int = self.config_general["wallpapers_per_set"]
         self.config_total_changing_times: int = len(self.config_changing_times)
         self.config_log_level: str = self.config_general.get("loglevel", "INFO").upper()
+        self.config_behavior: str = self._set_behavior()
         # HACK: Add a function to handle these try/except blocks cleanlier.
         try:
             self.config_notify: bool = self.config_general["notify"]
@@ -64,9 +66,44 @@ class _ConfigLib:
         logger.setLevel(numeric_level)
         logging.basicConfig(filename="wallman.log", encoding="utf-8", level=numeric_level)
 
+    # TODO: Make this all just work inside the try/except block, there is no need for get()
+    # TODO: Adjust these variable names
+    def _set_behavior(self) -> str:
+        try:
+            self.config_general.get("behavior")
+        except KeyError:
+            logger.info("There is no wallpaper behavior specified in general, defaulting to fill...")
+            print("There is no wallpaper behavior specified in general, defaulting to fill...")
+
+        human_behaviors: List[str] = ["pure", "tile", "center", "fill", "max", "scale"]
+        machine_behaviors: List[str] = ["--bg", "--bg-tile", "--bg-center", "--bg-fill", "--bg-max", "--bg-scale"]
+        behavior: str = self.config_general.get("behavior", "--bg-fill").lower()
+        if behavior not in human_behaviors or behavior not in machine_behaviors:
+            logging.error(f"The value provided for behaviors, {behavior}, is not valid. Defaulting to fill...")
+            print(f"ERROR: The value provided for behaviors, {behavior}, is not valid. Defaulting to --bg-fill...")
+
+        if behavior not in machine_behaviors:
+            match behavior:
+                case "pure":
+                    behavior = "--bg"
+                case "tile":
+                    behavior = "--bg-tile"
+                case "center":
+                    behavior = "--bg-center"
+                case "max":
+                    behavior = "--bg-max"
+                case "scale":
+                    behavior = "--bg-scale"
+                case _:
+                    behavior = "--bg-fill"
+
+        logger.info(f"The wallpaper behavior '{behavior}' has been set.")
+        return behavior
+
+
     def _set_fallback_wallpaper(self):
         if self.config_general["fallback_wallpaper"]:
-            system(f"feh --bg-fill --no-fehbg {self.config_general['fallback_wallpaper']}")
+            system(f"feh {self.config_behavior} --no-fehbg {self.config_general['fallback_wallpaper']}")
             logger.info("The fallback Wallpaper has been set.")
         else:
             logger.critical("An Error occured and no fallback wallpaper was provided, exiting...")
@@ -232,7 +269,7 @@ class WallpaperLogic(_ConfigLib):
             # HACK on this to see if this logic can be simplified. It's very ugly to check it that way.
             # Check if the current time is between a given and the following changing time and if so, set that wallpaper. If not, keep trying.
             if self._time_in_range(time(int(clean_time[0]), int(clean_time[1]), int(clean_time[2])), time(int(clean_time_two[0]), int(clean_time_two[1]), int(clean_time_two[2])), datetime.now().time()):
-                exitcode = system(f"feh --bg-tile --no-fehbg --quiet {self.wallpaper_list[time_range]}")
+                exitcode = system(f"feh {self.config_behavior} --no-fehbg --quiet {self.wallpaper_list[time_range]}")
                 has_wallpaper_been_set = self._check_system_exitcode(exitcode)
                 # TODO: Add this check to _notify_user.
                 if self.config_notify:
@@ -241,7 +278,7 @@ class WallpaperLogic(_ConfigLib):
             else:
                 continue
 
-        exitcode = system(f"feh --bg-tile --no-fehbg {self.wallpaper_list[-1]}")
+        exitcode = system(f"feh {self.config_behavior} --no-fehbg {self.wallpaper_list[-1]}")
         has_wallpaper_been_set = self._check_system_exitcode(exitcode)
         if self.config_notify:
             self._notify_user()