Change the delete confirmation dialog label.

src/components/ContactEdit.tsx

@@ -506,6 +506,7 @@ class ContactEdit extends React.PureComponent {
 
       <ConfirmationDialog
         title="Delete Confirmation"
+        labelOk="Delete"
         open={this.state.showDeleteDialog}
         onOk={() => this.props.onDelete(this.props.item!, this.props.initialCollection!)}
         onCancel={() => this.setState({showDeleteDialog: false})}

src/components/EventEdit.tsx

@@ -282,6 +282,7 @@ class EventEdit extends React.PureComponent {
 
       <ConfirmationDialog
         title="Delete Confirmation"
+        labelOk="Delete"
         open={this.state.showDeleteDialog}
         onOk={() => this.props.onDelete(this.props.item!, this.props.initialCollection!)}
         onCancel={() => this.setState({showDeleteDialog: false})}

src/widgets/ConfirmationDialog.tsx

@@ -9,6 +9,7 @@ export default pure((_props: any) => {
   const {
     onCancel,
     onOk,
+    labelOk,
     ...props,
   } = _props;
   const actions = [
@@ -24,7 +25,7 @@ export default pure((_props: any) => {
     (
       <FlatButton
         key="2"
-        label="Submit"
+        label={labelOk || 'Confirm'}
         primary={true}
         onClick={onOk}
       />