Since the switch to Kodeco, sample source code seems to be rendering funky. This is true of both Safari and Chrome on MacOS FWIW. I cleared all cookies and cache items related to rw / kodeco figuring perhaps that that was the issue – but it persists even after getting rid of them. It looks like a spacing vs. tabs issue and a dark / light mode problem. (I can’t toggle the latter currently.)
edit: Seems true of other books as well – articles seem fine
I’ll second this, and kinda surprised this wasn’t caught before hand.
Was wondering if there’s already a thread or contact for such bug reports …? Found several just now, but not sure where to send them.
Seems maybe they’re actively working on some, as things are changing while I write this …
As a developer, I have to blame QA. 
Thank you for reporting this — we are working on a fix!
Sorry for the inconvenience, we are only a small team, and things do slip through 
A dedicated thread is an excellent idea, thanks! Getting one set up momentarily !
The code blocks in books should be readable again, but light/dark mode is not available.
Great to see the fixes coming fast and furious.