Feature: ExpandIcon should use the size parameter

[Inconnu08]

Related Issues

#45692

Tests

I added the following tests:

• ExpandIcon default size is 24
• ExpandIcon has the correct given size

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[shihaohong]

Hi @Inconnu08! Could you add tests to verify for a default behavior ("default size"), as well as passing in a few size values to the ExpandIcon to make sure that changes are expected?

[Inconnu08]

@shihaohong sorry was a bit busy but here it is

[shihaohong]

LGTM

[shihaohong]

I restarted the docs-linux test since it seems to be failing for reasons unrelated to your PR. If it fails again, you might have to rebase with master

[shihaohong]

Strangely, rerunning the failing docs-linux check caused one checkmark to pass, while the other "failing" checkmark is stuck on the previous run. I'm merging on red and will monitor its progress since it seems like it's the CI having issues rather than an actual failing check.

[Inconnu08]

closes #45692