make bootstrap 2/3 button styling the same

flask_admin/templates/bootstrap2/admin/lib.html

@@ -158,7 +158,7 @@
         {{ extra }}
         {% endif %}
         {% if cancel_url %}
-        <a href="{{ cancel_url }}" class="btn btn-large">{{ _gettext('Cancel') }}</a>
+        <a href="{{ cancel_url }}" class="btn btn-large btn-danger">{{ _gettext('Cancel') }}</a>
         {% endif %}
       </div>
     </div>

flask_admin/templates/bootstrap3/admin/model/edit.html

@@ -2,7 +2,7 @@
 {% import 'admin/lib.html' as lib with context %}
 
 {% macro extra() %}
-  <input name="_continue_editing" type="submit" class="btn" value="{{ _gettext('Save and Continue') }}" />
+  <input name="_continue_editing" type="submit" class="btn btn-default" value="{{ _gettext('Save and Continue') }}" />
 {% endmacro %}
 
 {% block head %}