I reinstalled the ppa then Flat Remix. I got:
lostados@lost-mac:~$ sudo apt-get install flat-remix-gnome
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
flat-remix-gnome
1 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
1 not fully installed or removed.
Need to get 0 B/3.506 kB of archives.
After this operation, 39,6 MB of additional disk space will be used.
(Reading database ... 389725 files and directories currently installed.)
Preparing to unpack .../flat-remix-gnome_3.32.2-2_amd64.deb ...
Unpacking flat-remix-gnome (3.32.2-2) over (3.32.2-2) ...
dpkg: error processing archive /var/cache/apt/archives/flat-remix-gnome_3.32.2-2_amd64.deb (--unpack):
trying to overwrite '/usr/share/themes/Flat-Remix/gnome-shell/assets/calendar-arrow-left.svg', which is also in package flat-remix-themes 2.1-r1~cosmic~NoobsLab.com
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
update-alternatives: error: no alternatives for gdm3.css
dpkg: error while cleaning up:
new flat-remix-gnome package post-removal script subprocess returned error exit status 2
Errors were encountered while processing:
/var/cache/apt/archives/flat-remix-gnome_3.32.2-2_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
When I tried to uninstall, I got:
lostados@lost-mac:~$ sudo apt-get --purge remove flat-remix
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
flat-remix-gnome
The following packages will be REMOVED:
flat-remix*
The following packages will be upgraded:
flat-remix-gnome
1 upgraded, 0 newly installed, 1 to remove and 1 not upgraded.
1 not fully installed or removed.
Need to get 0 B/3.506 kB of archives.
After this operation, 294 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 389725 files and directories currently installed.)
Preparing to unpack .../flat-remix-gnome_3.32.2-2_amd64.deb ...
Unpacking flat-remix-gnome (3.32.2-2) over (3.32.2-2) ...
dpkg: error processing archive /var/cache/apt/archives/flat-remix-gnome_3.32.2-2_amd64.deb (--unpack):
trying to overwrite '/usr/share/themes/Flat-Remix/gnome-shell/assets/calendar-arrow-left.svg', which is also in package flat-remix-themes 2.1-r1~cosmic~NoobsLab.com
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
update-alternatives: error: no alternatives for gdm3.css
dpkg: error while cleaning up:
new flat-remix-gnome package post-removal script subprocess returned error exit status 2
Errors were encountered while processing:
/var/cache/apt/archives/flat-remix-gnome_3.32.2-2_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
lostados@lost-mac:~$