Block* -> Field*

src/components/FieldComment.jsx

@@ -0,0 +1,32 @@
+import React from 'react'
+import PropTypes from 'prop-types'
+
+import Block from './Block'
+import FieldString from './FieldString'
+
+export default class BlockComment extends React.Component {
+  static propTypes = {
+    value: PropTypes.string,
+    onChange: PropTypes.func.isRequired,
+  }
+
+  render() {
+    const fieldSpec = {
+      doc: "Comments for the current layer. This is non-standard and not in the spec."
+    };
+
+    return <Block
+      label={"Comments"}
+      fieldSpec={fieldSpec}
+      data-wd-key="layer-comment"
+    >
+      <FieldString
+        multi={true}
+        value={this.props.value}
+        onChange={this.props.onChange}
+        default="Comment..."
+      />
+    </Block>
+  }
+}
+