Questions[clementine](ubuntu)

I have been using Clementine as my main music player for a while now, and it has always perfectly matched the theme of my desktop environment (be that Gnome, Cinnamon or Xfce) until I installed the latest version of Ubuntu.

I am currently running Ubuntu Studio 18.10, and for whatever reason it isn't following the system theme. I have checked in Clementine's settings through; Tools>Preferences>Appearance and I have got 'Use the system default colour set' ticked. I understand that Xfce is a GTK desktop environment and Clementine is created using Qt but this has never been an issue with other GTK environments before.

To show you what I mean here is a picture of Clementine running next to Thunar:

Hopefully someone knows the answer, the lighter theme Clementine is currently using just doesn't go with the rest of my system. Thank you in advance!

Edit: I can also confirm that the same thing occurs on Xubuntu 18.10

As the title says, I know that there one time was a download button to install spotify but i dont have it. Is there something else you have to do for 1.2?

I downloaded it from www.clementine-player.org, I also tried it in arch just to see if it worked there but same problem.

I want to launch Clementine every time I start my PC, and I want it to be minimised (only tray icon) and playing music. I added it to Startup Applications. What do I do next?

I downloaded Clementine because I heard it had all sorts of connections to online music sources, including spotify. I had it installed before but it was from the software center and didn't have spotify for some reason. So I uninstall that and install it from the .deb on clementine's website. I open it up put my login info in and install the plugin that it needs to support spotify. I start playing some songs from my spotify and it works just fine.

But then I accidentally right clicked and selected one of my playlist to sync for offline listening, so I exited clementine to make it stop doing that. Now whenever I try to play something on spotify on it, it just plays like the first second of the track then skips to the next track and then stops completely, also spotify results aren't showing up in the search bar even though I have spotify checked off to be in the searches.

I tried "complete removal" in synaptic and the purge command in the terminal on it to completely remove it so I could reinstall again and fix the problem, and the purge command does work on it, but when I reinstall it, it still remembers all my settings, like my logins and layout choices and songs in my playlist. It's as if it doesn't realize that I even purged it.

I don't know how to fix it, there isn't a .clementine folder in the home folder for me to look at and I don't know why purging it isn't working.

After I've installed Clementine and imported (for the first time) my complete music library it seems to be impossible to add more songs.

I can however effortlessly add songs to a playlist - but not to the big library.

What am I doing wrong?