Examine source code of Too Much Pink

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Very Pink",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(255, 88, 147)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(151, 24, 68)",
      "tab_background_text": "rgb(173, 173, 173)",
      "toolbar_field": "rgb(255, 225, 239)",
      "toolbar_field_text": "rgb(146, 14, 75)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(255, 88, 147)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(255, 211, 227)",
      "button_background_hover": "rgb(255, 88, 149)",
      "frame_inactive": "rgb(0, 0, 0)",
      "icons_attention": "rgb(255, 255, 255)",
      "icons": "rgb(0, 0, 0)",
      "ntp_background": "rgb(255, 125, 175)",
      "ntp_text": "rgb(112, 0, 61)",
      "popup_border": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(255, 211, 226)",
      "toolbar_field_border_focus": "rgb(195, 85, 118)",
      "toolbar_field_border": "rgb(0, 0, 0)",
      "toolbar_field_focus": "rgb(255, 214, 228)",
      "toolbar_field_highlight_text": "rgb(255, 185, 208)",
      "toolbar_field_highlight": "rgb(255, 68, 129)",
      "toolbar_field_separator": "rgb(255, 255, 255)",
      "toolbar_field_text_focus": "rgb(255, 33, 124)",
      "toolbar_top_separator": "rgb(255, 100, 162)",
      "toolbar_vertical_separator": "rgb(255, 117, 176)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{428f9a97-dfd8-47c9-8015-381e0b3622d8}"
    }
  }
}