copay/public/views/includes/note.html

<div class="columns m20t">
  <label class="size-14 text-center">
    <span ng-show="!comment" translate>Add comment</span>
    <span ng-show="comment" translate>Edit comment</span>
  </label>
  <input type="text" ng-model="data.comment" autofocus>
</div>
<div class="row m20t dib">
  <div class="half-row left">
    <button class="round outline dark-gray expand" ng-click="commentPopupClose()" translate>Cancel</button>
  </div>
  <div class="half-row left">
    <button ng-style="{'background-color': index.backgroundColor}" class="round outline expand" ng-click="commentPopupSave()" translate>Save</button>
  </div>
</div>