Examine source code of Retro SynthWave

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Retro SyntWave",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(19, 1, 55)",
      "toolbar_text": "rgb(233, 13, 100)",
      "frame": "rgb(30, 1, 48)",
      "tab_background_text": "rgb(9, 236, 233)",
      "toolbar_field": "rgb(198, 12, 104)",
      "toolbar_field_text": "rgb(26, 5, 67)",
      "tab_line": "rgb(205, 35, 185)",
      "popup": "rgb(16, 0, 25)",
      "popup_text": "rgb(236, 9, 159)",
      "button_background_hover": "rgb(252, 178, 30)",
      "icons_attention": "rgb(255, 245, 0)",
      "ntp_background": "rgb(14, 5, 33)",
      "ntp_text": "rgb(233, 13, 100)",
      "popup_border": "rgb(233, 13, 100)",
      "sidebar_highlight_text": "rgb(233, 13, 100)",
      "sidebar": "rgb(200, 4, 123)",
      "tab_text": "rgb(9, 236, 233)",
      "toolbar_bottom_separator": "rgb(255, 0, 93)",
      "toolbar_field_border_focus": "rgb(9, 236, 233)",
      "toolbar_field_border": "rgb(242, 232, 9)",
      "toolbar_field_focus": "rgb(19, 1, 55)",
      "toolbar_field_highlight": "rgb(227, 9, 236)",
      "toolbar_field_text_focus": "rgb(9, 236, 233)",
      "toolbar_top_separator": "rgb(233, 13, 100)",
      "toolbar_vertical_separator": "rgb(233, 13, 100)",
      "tab_loading": "rgb(205, 35, 185)"
    }
  }
}