src/vs/workbench/contrib/scm/browser/scmViewPane.ts/ActionButtonRenderer/renderElement
class ActionButtonRenderer:	renderElement(node: ITreeNode<ISCMActionButton, FuzzyScore>, index: number, templateData: ActionButtonTemplate, height: number | undefined): void {
		templateData.disposable.dispose();

		templateData.actionButton.setButton(node.element.button);
	}