Congrats on the new update. I bet the underlying changes are solidifying Roon as a platform and the decision to focus on them was carefully weighed. I gotta say I would have loved to see some advancement in remote access to my Roon core though.
Regarding the many complaints about font rendering. It seems like you’ve switched to some form of subpixel-antialiasing which makes light text on dark backgrounds look pretty thick. My recommendation is to switch to normal antialiasing for the dark mode. The light UI is fine and text renders well on it in my opinion. It should be a quick fix if you want to stop the avalanche of users complaining but I could be wrong 
Kudos on shipping this release. I’m looking forward to Roon 2.0 in 2020 