vaadin-grid-tree-toggle add a style attribute

Hi All,
I’m using a tree grid of Vaadin Flow (version 12) via the Java API. Is there a way to get to a handle on the vaadin-grid-tree-toggle in order to add an extra css attribute? I’d like to add align-items: flex-start so that the expand/collapse icon aligns at the top of the wrapped row text, instead of aligning at the middle of the text.