I ended up making a backup copy of previous theme and reinstalled. I don't know how it works, but the settings options were quite a bit different, even though both themes show the same version. The spacing and alignment issues were resolved after reinstalling the theme. Thanks for guidance 🙂
Now, maybe you could help me locate how to make the slider not exceed forum width? It worked like so on previous version, but I'm not able to locate any settings, other than height.