How should theme.json support RTL and vertical writing?

[miminari]

What problem does this address?

I am looking at this ticket and wondering if RTL support is needed for theme.json.
https://core.trac.wordpress.org/ticket/57506

Considering the vertical writing feature, I feel that the concept of the logical property ( https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_logical_properties_and_values ) should also be introduced in theme.json.

What is your proposed solution?

This is not concrete at all, but I'll try to write it down.

1. for example, add something like "RTL mode" in theme.json?
2. Abd add logical properties settings for borders, margins, padding, etc.

Finally, as a Japanese, I would be very happy if I could write Japanese vertical text in WordPress, and for that, I need to be able to have styles for vertical writing. For example, there are styles specific to vertical writing, such as bullet points, emphasis lines on the right side, etc. To be consistent with these styles, I think we maybe need the concept of logical properties in theme.json at first, and isn't this also relevant to other language environments such as RTL?

I don't think this is enough, but I would like to start thinking about this with you guys anyway.
Thank you.

maybe related: #50319 #52299