src/vs/editor/common/config/editorOptions.ts/EditorStickyScroll/constructor
class EditorStickyScroll:	constructor() {
		const defaults: EditorStickyScrollOptions = { enabled: false, maxLineCount: 5 };
		super(
			EditorOption.stickyScroll, 'stickyScroll', defaults,
			{
				'editor.stickyScroll.enabled': {
					type: 'boolean',
					default: defaults.enabled,
					description: nls.localize('editor.stickyScroll', "Shows the nested current scopes during the scroll at the top of the editor.")
				},
				'editor.stickyScroll.maxLineCount': {
					type: 'number',
					default: defaults.maxLineCount,
					minimum: 1,
					maximum: 10,
					description: nls.localize('editor.stickyScroll.', "Defines the maximum number of sticky lines to show.")
				},
			}
		);
	}