src/vs/editor/browser/controller/textAreaHandler.ts/TextAreaHandler/_setAccessibilityOptions
class TextAreaHandler:	private _setAccessibilityOptions(options: IComputedEditorOptions): void {
		this._accessibilitySupport = options.get(EditorOption.accessibilitySupport);
		const accessibilityPageSize = options.get(EditorOption.accessibilityPageSize);
		if (this._accessibilitySupport === AccessibilitySupport.Enabled && accessibilityPageSize === EditorOptions.accessibilityPageSize.defaultValue) {
			// If a screen reader is attached and the default value is not set we shuold automatically increase the page size to 500 for a better experience
			this._accessibilityPageSize = 500;
		} else {
			this._accessibilityPageSize = accessibilityPageSize;
		}
	}