old_contents: const React = require("react");
  const { DOM: dom } = React;
  
  require("./Root.css");
  
  // Using this static variable allows webpack to know at compile-time
  // to avoid this require and not include it at all in the output.
  if (process.env.TARGET !== "firefox-panel") {
    require("../lib/themes/light-theme.css");
  }
  
  module.exports = function(component) {
    return dom.div(
      {
        className: "theme-light",
        style: { flex: 1 }
      },
      React.createElement(component)
    );
  };
  
new_contents: const React = require("react");
  const { DOM: dom } = React;
  
  require("./Root.css");
  
  // Using this static variable allows webpack to know at compile-time
  // to avoid this require and not include it at all in the output.
  if (process.env.TARGET !== "firefox-panel") {
    require("../lib/themes/light-theme.css");
  }
  
  module.exports = function(component) {
    return dom.div(
      {
        style: { flex: 1 }
      },
      React.createElement(component)
    );
  };
  
subject: Remove redundant theme