Examine source code of daytime moon

{
  "theme": {
    "images": {
      "theme_frame": "moonpersonaheader.jpg"
    },
    "colors": {
      "frame": "#998888",
      "tab_background_text": "#0f0a0a"
    }
  },
  "version": "2.0",
  "name": "daytime moon",
  "manifest_version": 2,
  "description": "daytime moon just past first quarter"
}