Examine source code of self use

{
  "manifest_version": 2,
  "version": "2.5",
  "name": "grey blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-002-609370e89a219e0548ac5ef6b4a7dd2e.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(85, 86, 94)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(50, 50, 57)",
      "tab_background_text": "rgb(215, 226, 239)",
      "toolbar_field": "rgb(16, 17, 31)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(254, 15, 7)",
      "popup": "rgb(71, 72, 79)",
      "popup_text": "rgb(215, 226, 239)",
      "popup_border": "rgb(15, 115, 232)",
      "sidebar_border": "rgb(15, 115, 232)",
      "sidebar_highlight": "rgb(119, 177, 233)",
      "sidebar_text": "rgb(209, 220, 232)",
      "sidebar": "rgb(45, 51, 57)",
      "toolbar_bottom_separator": "rgb(27, 133, 235)",
      "toolbar_field_border_focus": "rgb(15, 115, 232)",
      "toolbar_top_separator": "rgb(45, 84, 232)",
      "tab_loading": "rgb(254, 15, 7)"
    }
  }
}