Examine source code of Peemaru

{
  "name": "Peemaru",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "無題115.png"
    },
    "colors": {
      "frame": "rgba(0, 206, 252, 0.69)",
      "tab_background_text": "rgba(9, 0, 173, 1)",
      "toolbar": "rgba(0, 202, 252, 0.37)",
      "bookmark_text": "rgba(29, 0, 217, 1)",
      "toolbar_field": "rgba(6, 60, 161, 0.57)",
      "toolbar_field_text": "rgba(0, 255, 55, 1)"
    }
  }
}