Examine source code of colour buttons ass

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "colour dots",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(203, 206, 97, 0)",
      "toolbar_text": "rgb(247, 240, 7)",
      "frame": "rgb(14, 42, 240)",
      "tab_background_text": "rgb(255, 215, 9)",
      "toolbar_field": "rgba(14, 42, 240, 0.76)",
      "toolbar_field_text": "rgb(9, 245, 240)",
      "tab_line": "rgb(252, 218, 0)",
      "popup": "rgb(5, 121, 167)",
      "popup_text": "rgb(117, 6, 237)",
      "tab_loading": "rgb(252, 218, 0)"
    }
  }
}