Examine source code of Not So Sweet

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Not So Sweet",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-035-ec6e2e3635b86a13a7ebee9a1390e7e7.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(75, 75, 79)",
      "toolbar_text": "rgb(248, 112, 140)",
      "frame": "rgb(20, 206, 231)",
      "tab_background_text": "rgb(14, 16, 16)",
      "toolbar_field": "rgb(45, 56, 56)",
      "toolbar_field_text": "rgb(248, 112, 140)",
      "tab_line": "rgb(248, 112, 140)",
      "popup": "rgb(20, 20, 20)",
      "popup_text": "rgb(39, 170, 245)",
      "button_background_hover": "rgb(141, 76, 5)",
      "icons_attention": "rgb(194, 186, 243)",
      "toolbar_field_border": "rgb(244, 157, 21)",
      "tab_loading": "rgb(248, 112, 140)"
    }
  }
}