Examine source code of Chrome: Ocean Pacific

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Ocean Pacific",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(128, 49, 37)",
      "toolbar_text": "rgb(207, 207, 207)",
      "frame": "rgb(42, 173, 201)",
      "tab_background_text": "rgb(56, 89, 95)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(123, 127, 204)",
      "tab_line": "rgb(254, 202, 11)",
      "popup": "rgb(128, 49, 37)",
      "popup_text": "rgb(207, 207, 207)",
      "button_background_hover": "rgb(106, 43, 33)",
      "frame_inactive": "rgb(53, 152, 174)",
      "ntp_background": "rgb(217, 186, 135)",
      "tab_selected": "rgb(128, 49, 37)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(106, 43, 33)",
      "toolbar_top_separator": "rgb(106, 43, 33)",
      "tab_loading": "rgb(254, 202, 11)"
    }
  }
}