The themes have no ability to have any effect on the html itself. You should fnd the html identical at all times across themes. Themes literally are just defined as CSS files and have no html associated with them.
@hansw@mastodon.social @QOTO
@design_RG Yes its very strange... On a whim can you go to your preferences-> and see what your setting is for stripping rich text there? By default it probably wont have anything selected (but really defaults to not stripping), something im working on fixing now. But if you explicitly select the option telling it not to strip the formatting (or if that was already selected let me know) does it change anything?
@design_RG Ok thats weird, I really didnt expect that to work. This is why in software debugging its always good to be thorough and not trust your assumptions, try everything :)
Well good to know now that I know the cause I know how to fix it too. I added a bug with details to the repo so I can fix that, should be an easy enough fix.
Still no idea why it would strip it in one theme but not another... but eh, ill figure it out.