src/vs/editor/contrib/hover/hoverWidgets.ts/GlyphHoverWidget/updateFont
class GlyphHoverWidget:	private updateFont(): void {
		const codeTags: HTMLElement[] = Array.prototype.slice.call(this._domNode.getElementsByTagName('code'));
		const codeClasses: HTMLElement[] = Array.prototype.slice.call(this._domNode.getElementsByClassName('code'));

		[...codeTags, ...codeClasses].forEach(node => this._editor.applyFontInfo(node));
	}