Examine source code of Light Silver

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Light Gray ",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-002-609370e89a219e0548ac5ef6b4a7dd2e.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(237, 237, 237)",
      "toolbar_text": "rgb(52, 52, 53)",
      "frame": "rgb(252, 252, 252)",
      "tab_background_text": "rgb(58, 61, 63)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(97, 99, 117)",
      "tab_line": "rgb(211, 217, 221)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(85, 85, 85)",
      "tab_loading": "rgb(211, 217, 221)"
    }
  }
}