Examine source code of summertime nowhere

{
  "name": "summertime nowhere ",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "1534147259.jpg"
    },
    "colors": {
      "frame": "rgba(121, 122, 191, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(125, 142, 150, 0.73)",
      "toolbar_field": "rgba(110, 142, 204, 0.21)",
      "toolbar_field_text": "rgba(242, 225, 225, 0.03)"
    }
  }
}