Chrome theme new tab background does not fill correctly

Question

I wanted to modify the Black red shards theme for my personal use but as you can see from this picture below the background does not fill the entire height. This can be reproduced on macOS and stretching the window to it's full height (ignoring the dock) or in this case, in fullscreen. The background is 1920x1080 and my display is 1920x1200 which I suspect is the reason this is broken. Scaling my display to 1920x1080 stretches my screen making it ugly, so what are my options?

The relevant parts of the manifest.json file are here:

   "name": "Black red shards",
   "theme": {
      "colors": {
         "bookmark_text": [ 255, 0, 0 ],
         "button_background": [ 255, 0, 0, 1 ],
         "frame": [ 66, 116, 201 ],
         "ntp_background": [ 0, 2, 2 ],
         "ntp_text": [ 255, 0, 0 ],
         "tab_background_text": [ 255, 0, 0 ],
         "tab_text": [ 255, 0, 0 ],
         "toolbar": [ 0, 0, 0 ],
     "omnibox_text": [ 255, 0, 0 ]
      },
      "images": {
         "theme_frame": "images/theme_frame.jpeg",
         "theme_ntp_background": "images/theme_ntp_background.jpeg",
         "theme_tab_background": "images/theme_tab_background.png",
         "theme_toolbar": "images/theme_toolbar.jpeg"
      },
      "properties": {
         "ntp_background_alignment": "bottom",
         "ntp_background_repeat": "no-repeat"
      },
      "tints": {
         "buttons": [ 0, 1, 0.5 ]
      }
   },

Answer 1

It looks like Google has fixed the bug, it is now back to normal.