Added argument to set the loading screen background color

Optional argument to set the loading screen background color

--presplash-color=#AARRGGBB, --presplash-color=#RRGGBB or --presplash-color=red

Default color: #FFFFFFFF (white)

Author: mrhdias

pythonforandroid/bootstraps/sdl2/build/build.py

@@ -413,6 +413,10 @@ def parse_args(args=None):
     ap.add_argument('--presplash', dest='presplash',
                     help=('A jpeg file to use as a screen while the '
                           'application is loading.'))
+    ap.add_argument('--presplash-color', dest='presplash_color', default='#FFFFFFFF',
+                    help=('A string to set the loading screen background color. '
+                          'Suported formats are: #RRGGBB #AARRGGBB or color names '
+                          'like red, green, blue, etc.'))
     ap.add_argument('--wakelock', dest='wakelock', action='store_true',
                     help=('Indicate if the application needs the device '
                           'to stay on'))