Examine source code of Tesca

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Tesca",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-009-f069b97f439938a011297c84464f0df6.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(57, 57, 57)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(25, 85, 115)",
      "tab_background_text": "rgb(229, 235, 242)",
      "toolbar_field": "rgba(12, 51, 81, 0.6)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(23, 53, 53, 0)",
      "popup": "rgba(56, 56, 56, 0.84)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(35, 123, 186)",
      "button_background_hover": "rgba(129, 129, 129, 0.67)",
      "icons_attention": "rgba(105, 229, 55, 0.67)",
      "icons": "rgb(219, 236, 248)",
      "tab_background_separator": "rgba(188, 201, 188, 0.71)",
      "tab_selected": "rgba(124, 229, 55, 0.68)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_field_border_focus": "rgba(147, 169, 207, 0.13)",
      "toolbar_field_border": "rgba(181, 197, 252, 0.5)",
      "toolbar_field_highlight_text": "rgba(102, 109, 97, 0.13)",
      "toolbar_field_separator": "rgba(216, 216, 216, 0.71)",
      "toolbar_top_separator": "rgba(35, 123, 186, 0.19)",
      "toolbar_vertical_separator": "rgba(97, 140, 83, 0)",
      "tab_loading": "rgba(23, 53, 53, 0)"
    }
  }
}