Add justification option to Post Content block (and potentially other containers)

[jameskoster]

I'm attempting to create the following layout in my single post template:

Note how everything is left-aligned, and the 'wide' width image stretches outwards to the right.

To do this I have:

• Set 'content' and 'wide' width values in global styles
• Placed a Post Content block at the root of my template, and toggled "Inner blocks respect content width" on

Here's the result:

It would be nice if we could bring the Justification option from the Row block to the Post Content block (and probably other containers as well).

[mtias]

I've also ran into this. There's also no access to margins so the centered layout cannot be reset. It'd be great to figure out a way to address this, it really hinders the expression you can achieve on themes.