This may possibly be as much an Ubuntu or Snap question, as an Inkscape question, but I'll ask anyway.

I use Ubuntu Mate 16.10 and I installed Inkscape 0.92 via the snap package tonight. Everything seems fine except the theme. I've attached an image of what I have.



I had a poke around and I see there is a themes folder within the snap installation folder (snap/inkscape/1880/.local/share/themes). Inside that folder there are theme folders for Ambiance, Default, Emacs, Radiance & Raleigh. I think these may be symlinks to the usr/share/themes directory (when I look for the target folder in Properties, the name is too long & gets cut off, but I believe it's this directory).

My system default theme is MATE's verson of Ambiance, along with the Numix Circle icons. The theme is called Ambiant-MATE. I wondered if Inkscape was looking for Ambiance, when it should be looking for Ambiant-MATE. I'm not sure why it doesn't pick up the default theme. As per screenshot, the window border seems OK, but everything else is a bit ugly!

I opened the terminal and tried to add a symlink from the snaps themes folder to /usr/share/themes/Ambiant-MATE, but I get an error saying "ln: failed to create symbolic link './Ambiant-MATE': Read-only file system". (I used sudo so permissions shouldn't have been a problem.) I can't copy the Ambiant-MATE folder into the snaps/themes folder either.

I'm moderately proficient with Ubuntu but this is the first time I've used a snap package so I'm not sure if it's an issue with Inkscape, or my inexperience with snap (and I don't have much experience with symlinks either, in truth).

Does anyone else have an issue similar to this? Is this something I can fix myself with a bit of googling, or is it an Inkscape problem?

Not an Inkscape problem - the current Snap package for Inkscape just does not include GTK2 theming (see also these tweets).

Ah, I understand. Thanks ~suv. I can live with the ugly theme.

Hey there,
I just finished an alternative toolbar icons set to go with the numix icons on my desktop. Just copy the icons.svg file in your home directory in .config/inkscape/icons. Guess this might not work for a snap install but it sure does for the old fashioned way.
Here you go: https://www.dropbox.com/s/vc58pda6te6g72w/icons.svg?dl=0
I you want, for example, just the toolicons you can open icons.svg in inkscape, delete the icons you don't want to use and save.
Feel free to spread that link.