diff --git a/Colorbase.py b/Colorbase.py
index 755be30..e3b03ea 100644
--- a/Colorbase.py
+++ b/Colorbase.py
@@ -10,8 +10,9 @@
 pygame.init()
 pygame.display.set_caption('Colorbase R2')
 monitor = (pygame.display.Info().current_w, pygame.display.Info().current_h)
+fullscreen = False
 clock = pygame.time.Clock() # start pygame clock
-void = pygame.display.set_mode(monitor, pygame.RESIZABLE)
+void = pygame.display.set_mode((200, 200), pygame.RESIZABLE)
 colors = ['white', 'blue', 'green', 'red', 'yellow', 'cyan', 'magenta', 'gray', 'black']
 index = 0 # set index of color selection
 
@@ -32,15 +33,26 @@ def update_display():
     for event in pygame.event.get():
         # checking for input events
         if event.type == pygame.KEYDOWN:
+            if event.key == pygame.K_SPACE:
+                # on SPACE, toggle fullscreen/
+                # resizable windows size
+                if fullscreen == False:
+                    fullscreen = True
+                    void = pygame.display.set_mode(monitor, pygame.FULLSCREEN)
+                else:
+                    fullscreen = False
+                    void = pygame.display.set_mode((200, 200), pygame.RESIZABLE)
+                update_display()
             if event.key == pygame.K_RETURN:
-                # on ENTER (aka RETURN)
+                # on ENTER (aka RETURN),
+                # change index, thus color
                 if index == len(colors)-1:
                     index = 0
                 else:
                     index += 1
                 update_display()
             if event.key == pygame.K_ESCAPE:
-                # on ESCAPE
+                # on ESCAPE, exit application
                 r = False
                 sys.exit()
     pygame.display.flip()
\ No newline at end of file
diff --git a/build-linux.sh b/build-linux.sh
index 44f8290..5959851 100644
--- a/build-linux.sh
+++ b/build-linux.sh
@@ -1,2 +1,2 @@
 #!/bin/bash
-python3 -m PyInstaller --onefile Colorbase.py -noconsole
\ No newline at end of file
+python3 -m PyInstaller --onefile --noconsole Colorbase.py
\ No newline at end of file
diff --git a/build-windows.cmd b/build-windows.cmd
index 3fce701..1370674 100644
--- a/build-windows.cmd
+++ b/build-windows.cmd
@@ -1 +1 @@
-python -m PyInstaller --onefile Colorbase.py -noconsole
\ No newline at end of file
+python -m PyInstaller --onefile --noconsole Colorbase.py
\ No newline at end of file