Examine source code of Chainsaw Man

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Chainsaw Man",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(229, 38, 21, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(29, 4, 1)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(229, 38, 21, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(133, 255, 0)",
      "popup": "rgba(29, 4, 1, 0.91)",
      "popup_text": "rgb(255, 124, 0)",
      "button_background_active": "rgba(63, 24, 2, 0.79)",
      "button_background_hover": "rgba(174, 58, 0, 0.82)",
      "icons_attention": "rgb(255, 0, 0)",
      "ntp_background": "rgb(38, 8, 4)",
      "ntp_text": "rgb(255, 233, 197)",
      "popup_border": "rgba(133, 255, 0, 0.8)",
      "popup_highlight_text": "rgb(255, 233, 197)",
      "popup_highlight": "rgb(113, 40, 7)",
      "sidebar_border": "rgba(133, 255, 0, 0.8)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(113, 40, 7)",
      "sidebar_text": "rgb(255, 148, 0)",
      "sidebar": "rgb(29, 4, 1)",
      "tab_background_separator": "rgba(229, 38, 21, 0)",
      "tab_loading": "rgb(255, 148, 0)",
      "tab_selected": "rgba(43, 9, 1, 0.81)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(113, 40, 7)",
      "toolbar_field_border_focus": "rgba(133, 255, 0, 0.89)",
      "toolbar_field_border": "rgba(229, 38, 21, 0)",
      "toolbar_field_focus": "rgba(28, 6, 4, 0.95)",
      "toolbar_field_highlight_text": "rgb(255, 233, 197)",
      "toolbar_field_highlight": "rgb(113, 40, 7)",
      "toolbar_field_separator": "rgba(52, 10, 10, 0.21)",
      "toolbar_field_text_focus": "rgb(255, 96, 0)",
      "toolbar_top_separator": "rgba(229, 38, 21, 0)",
      "toolbar_vertical_separator": "rgba(162, 120, 0, 0.34)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{26cfd9d9-92cf-4384-a2a0-6a2e9a55e3e5}"
    }
  }
}