Examine source code of Dark Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-017-7074520d97b5c592d413aed5f115f093.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(0, 148, 255)",
      "frame": "rgb(17, 17, 17)",
      "tab_background_text": "rgb(0, 101, 138)",
      "toolbar_field": "rgba(45, 45, 45, 0.53)",
      "toolbar_field_text": "rgb(0, 148, 255)",
      "tab_line": "rgb(62, 143, 255)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(0, 155, 255)",
      "button_background_hover": "rgba(0, 190, 255, 0.2)",
      "icons": "rgb(0, 169, 255)",
      "tab_loading": "rgb(62, 143, 255)"
    }
  }
}