modules/ve-mw/ui/styles/elements/ve.ui.DiffElement-vector.less
/*!
* VisualEditor Vector-specific UserInterface DiffElement styles.
*
* @copyright See AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
ul > li[ data-diff-list-none ] {
list-style-image: url( images/vector-bullet-icon-disabled.svg );
}