Scroll arrow not shown in scrollable menu

[tyeth]

Describe the problem

In cases where the content of a menu exceeds the space available from the dimensions of the display, the additional menu items can be accessed by scrolling the menu up or down. One of the mechanisms for scrolling is to hover over a ▲/▼ icon that appears at the top/bottom of the menu.

I have a Tools menu that is scrollable due to the following conditions:

• A board is selected that defines many "custom board options".
• The non-maximized window is positioned at the bottom of the screen.

Under these conditions, the native Electron menu shows a scroll-up arrow but no scroll-down arrow:

https://youtu.be/eIT19Y_4sT0

Expected behavior

Basic functionality works.

Arduino IDE version

2.2.8

Operating system

Windows

Operating system version

11

Additional context

Scrolling the menu by keyboard works fine.

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the latest nightly build
• My report contains all necessary details