mizlan Appreciate the feedback - unfortunately offering the entirety of our old UI isn't practical. But if you have some concrete suggestions about how you think the current UI and theme options could be better improved for everyone, we're happy to check out some ideas of places that you think could use more or different colors.
As handsel mentions, we do support attaching custom CSS to your account, so if you're handy you can use that to create some mockups and share them with the community.
If you need some help with that, I can recommend joining our community Discord server https://discord.gg/aDNg6E9szy - perhaps someone can help you out 😺