src/vs/editor/browser/viewParts/lines/viewLine.ts/ViewLine/onSelectionChanged
class ViewLine:	public onSelectionChanged(): boolean {
		if (isHighContrast(this._options.themeType) || this._options.renderWhitespace === 'selection') {
			this._isMaybeInvalid = true;
			return true;
		}
		return false;
	}