I lost the down arrow icon for the "Next Change" in my VSCode toolbar -- how do I get it back?

Question

My git diff window in VSCode used to show an up-arrow icon (Previous Change) and a down-arrow icon (Next Change) in the toolbar.

I somehow recently lost just the down-arrow, and I can't figure out how to get it back. The "Next Change" action now instead shows up only in the "More Actions..." menu (see screenshot).

Any suggestions how to fix this? I have scoured the VSCode settings but have not been able to find anything related.

This screenshot below shows where the arrow used to be:

Answer 1

It was weirdly hard to figure this out, but the answer turned out to be embarrassingly simple. Right-clicking on any icon in the toolbar displays a list of icons to show or hide.

Answer 2

For my case, Next Change button appears after disabling other buttons.

Firstly, the buttons are like this:

Right-click any icon in the toolbar. Then, the list of available buttons appear like this:

Uncheck Print button. Then, the Next Change button appears.