Examine source code of Chalk Stripes

{
  "name": "Chalk Stripes",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "1rainbow.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(186, 187, 186, 1)",
      "toolbar": "rgba(97, 62, 62, 0)",
      "bookmark_text": "rgba(138, 138, 138, 1)",
      "toolbar_field": "rgba(186, 187, 186, 1)",
      "toolbar_field_text": "rgba(125, 125, 125, 1)",
      "tab_line": "rgba(105, 105, 105, 0)"
    }
  }
}