Examine source code of palette theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "my",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-030-0f935cfde055600d01a959c5c15353de.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(95, 147, 154)",
      "toolbar_text": "rgb(254, 255, 222)",
      "frame": "rgb(19, 44, 51)",
      "tab_background_text": "rgb(248, 248, 248)",
      "toolbar_field": "rgb(252, 252, 252)",
      "toolbar_field_text": "rgb(21, 14, 86)",
      "tab_line": "rgb(255, 211, 180)",
      "popup": "rgb(27, 23, 23)",
      "popup_text": "rgb(238, 235, 221)",
      "tab_loading": "rgb(255, 211, 180)"
    }
  }
}