diff --git a/columbus/env.py b/columbus/env.py
index 2e09ad7..0821186 100644
--- a/columbus/env.py
+++ b/columbus/env.py
@@ -46,7 +46,7 @@ def parseObs(obsConf):
 class ColumbusEnv(gym.Env):
     metadata = {'render.modes': ['human']}
 
-    def __init__(self, observable=observables.Observable(), fps=60, env_seed=3.1, master_seed=None, start_pos=(0.5, 0.5), start_score=0, speed_fac=0.01, acc_fac=0.04, die_on_zero=False, return_on_score=-1, reward_mult=1, agent_drag=0, controll_type='SPEED', aux_reward_max=1, aux_penalty_max=0, aux_reward_discretize=0, void_is_type_barrier=True, void_damage=1, torus_topology=False, default_collision_elasticity=1, terminate_on_reward=False, agent_draw_path=False, clear_path_on_reset=True, max_steps=-1, value_color_mapper='tanh'):
+    def __init__(self, observable=observables.Observable(), fps=60, env_seed=3.1, master_seed=None, start_pos=(0.5, 0.5), start_score=0, speed_fac=0.01, acc_fac=0.04, die_on_zero=False, return_on_score=-1, reward_mult=1, agent_drag=0, controll_type='SPEED', aux_reward_max=1, aux_penalty_max=0, aux_reward_discretize=0, void_is_type_barrier=True, void_damage=1, torus_topology=False, default_collision_elasticity=1, terminate_on_reward=False, agent_draw_path=False, clear_path_on_reset=True, max_steps=-1, value_color_mapper='tanh', width=720, height=720):
         super(ColumbusEnv, self).__init__()
         self.action_space = spaces.Box(
             low=-1, high=1, shape=(2,), dtype=np.float32)
@@ -54,14 +54,14 @@ class ColumbusEnv(gym.Env):
             observable = parseObs(observable)
         observable._set_env(self)
         self.observable = observable
-        self.title = 'Untitled'
+        self.title = 'Columbus Env'
         self.fps = fps
         self.env_seed = env_seed
         self.joystick_offset = (10, 10)
         self.surface = None
         self.screen = None
-        self.width = 720
-        self.height = 720
+        self.width = width
+        self.height = height
         self.visible = False
         self.start_pos = start_pos
         self.speed_fac = speed_fac/fps*60
diff --git a/configs/Example_Units.yaml b/configs/Example_Units.yaml
index c5ba7d7..b7bc6ca 100644
--- a/configs/Example_Units.yaml
+++ b/configs/Example_Units.yaml
@@ -6,7 +6,7 @@ name: "DEFAULT"
 # ct: 100ct = Full Width / Height
 # rx: pixels relative to width
 # ry: pixels relative to height
-# au: 1au = 36px
+# au: 1au = 36px (https://knowyourmeme.com/memes/absolute-unit)
 #
 # When no unit is given, we use the folowing defaults
 # (compatible with legacy behavior)