Examine source code of Header00

{
  "name": "Header00",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "wallpaperbetter.com_3840x2160.png"
    },
    "colors": {
      "frame": "rgba(54, 54, 54, 1)",
      "tab_background_text": "rgba(0, 255, 145, 1)",
      "toolbar": "rgba(20, 20, 20, 1)",
      "bookmark_text": "rgba(255, 0, 221, 1)",
      "toolbar_field": "rgba(20, 20, 20, 1)",
      "toolbar_field_text": "rgba(0, 255, 153, 1)",
      "tab_line": "rgba(0, 255, 145, 1)"
    }
  }
}