Provide theme properties to limit icon size for Button.

[Daylily-Zeleen]

I think a way to limite the icon size of Button is necessary.

This pr relevant to #71818 , to handle the icon size of EditorResourcePicker.

icon.size.mp4

[YuriSizov]

To achieve the results from the linked PR we don't actually need to make any additions. So this is PR is not required now, at least not to support that feature. See #75472.

We can revisit the idea, if it's useful for something else.

[Daylily-Zeleen]

To achieve the results from the linked PR we don't actually need to make any additions. So this is PR is not required now, at least not to support that feature. See #75472.

We can revisit the idea, if it's useful for something else.

I haven't followed this repositories for a while. It still have not a way to limit icon size for buttons, right?

If yes, I think this pr is still necessary, we can use the same texture to make buttons which have different size of icons, instead of creating textures for every size of button, and beneficial to tune the size of icon in editor.

By the way, to let them as theme properties is useful to create persets for different size buttons.

[YuriSizov]

There is no way to limit icons to a specific size, no, but buttons have an Expand icon flag that allows it to scale to the button size.

So that other PR never needed this functionality. If there is some use for it beyond that, please make a formal proposal with your use case.

[YuriSizov]

After additional testing it seems we might still need a way to limit the icon to a specific size. I'll add one to #75472, but only for the width, so it works the same way it does for Tree and PopupMenu. The height is scaled with the respect to the ratio.

If this is sufficient for your use case, then there is no need to open a proposal.