Change overlay color

Author: John Yorke

_config.yml

@@ -58,7 +58,7 @@ topbar_transparency                       : 1.0
 topbar_title_color                        : "#ffffff"
 
 cover_image                               : assets/headerimage.jpg                    # Replace with alternative image path or image URL.
-cover_overlay_color                       : "#000000"
+cover_overlay_color                       : "#101010"
 cover_overlay_transparency                : 0.7
 
 device_color                              : black                                     # Set to: blue, black, yellow, coral or white.