Examine source code of grey_glass_ dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "grey_glass red",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(172, 65, 137, 0.17)",
      "toolbar_text": "rgb(250, 255, 255)",
      "frame": "rgb(2, 42, 67)",
      "tab_background_text": "rgb(247, 237, 239)",
      "toolbar_field": "rgb(0, 32, 28)",
      "toolbar_field_text": "rgb(226, 226, 245)",
      "tab_line": "rgb(239, 97, 154)",
      "popup": "rgb(142, 112, 124)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(239, 97, 154)"
    }
  }
}