Examine source code of soft_visual

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "soft",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-003-8ef09b1ac3637e1c95fa5c504fdf1a5d.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(233, 241, 233)",
      "toolbar_text": "rgb(112, 119, 98)",
      "frame": "rgb(217, 217, 197)",
      "tab_background_text": "rgb(27, 25, 24)",
      "toolbar_field": "rgba(245, 245, 232, 0.7)",
      "toolbar_field_text": "rgb(56, 59, 56)",
      "tab_line": "rgb(236, 229, 227)",
      "popup": "rgb(221, 226, 197)",
      "popup_text": "rgb(19, 21, 17)",
      "tab_loading": "rgb(236, 229, 227)"
    }
  }
}