Rename themes -> flavours ? ?

app/javascript/flavours/glitch/features/ui/components/column_header.js

@@ -0,0 +1,35 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+
+export default class ColumnHeader extends React.PureComponent {
+
+  static propTypes = {
+    icon: PropTypes.string,
+    type: PropTypes.string,
+    active: PropTypes.bool,
+    onClick: PropTypes.func,
+    columnHeaderId: PropTypes.string,
+  };
+
+  handleClick = () => {
+    this.props.onClick();
+  }
+
+  render () {
+    const { type, active, columnHeaderId } = this.props;
+
+    let icon = '';
+
+    if (this.props.icon) {
+      icon = <i className={`fa fa-fw fa-${this.props.icon} column-header__icon`} />;
+    }
+
+    return (
+      <div role='heading' tabIndex='0' className={`column-header ${active ? 'active' : ''}`} onClick={this.handleClick} id={columnHeaderId || null}>
+        {icon}
+        {type}
+      </div>
+    );
+  }
+
+}