Examine source code of Sober dark yellow

{
  "manifest_version": 2,
  "description": "A minimalistic dark theme with a touch of yellow",
  "name": "Sober dark yellow",
  "theme": {
    "colors": {
      "frame": [
        21,
        21,
        6
      ],
      "toolbar": [
        21,
        21,
        6
      ],
      "tab_text": [
        212,
        212,
        97
      ],
      "tab_background_text": [
        212,
        212,
        97
      ],
      "tab_background_separator": [
        212,
        212,
        97
      ],
      "frame_inactive": [
        74,
        74,
        61
      ],
      "icons": [
        249,
        249,
        233
      ],
      "toolbar_top_separator": [
        212,
        212,
        97
      ],
      "toolbar_vertical_separator": [
        212,
        212,
        97
      ],
      "toolbar_field_border": [
        212,
        212,
        97
      ],
      "toolbar_field_border_focus": [
        212,
        212,
        97
      ],
      "ntp_background": [
        21,
        21,
        6
      ],
      "ntp_text": [
        249,
        249,
        233
      ],
      "popup": [
        21,
        21,
        6
      ],
      "popup_text": [
        249,
        249,
        233
      ],
      "popup_highlight": [
        212,
        212,
        97
      ],
      "popup_highlight_text": [
        21,
        21,
        6
      ],
      "sidebar": [
        21,
        21,
        6
      ],
      "sidebar_text": [
        249,
        249,
        233
      ],
      "sidebar_highlight": [
        212,
        212,
        97
      ],
      "sidebar_highlight_text": [
        21,
        21,
        6
      ],
      "sidebar_border": [
        212,
        212,
        97
      ]
    }
  },
  "version": "2.0.0"
}