Examine source code of Soft Simple Readable

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Soft Simple Readable",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(227, 236, 240)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(36, 37, 44)",
      "tab_line": "rgb(248, 112, 140)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(17, 17, 18)",
      "tab_loading": "rgb(248, 112, 140)",
      "bookmark_text": "rgb(48, 43, 59)",
      "frame": "rgb(171, 218, 232)",
      "tab_background_text": "rgb(33, 40, 41)"
    }
  }
}