[Bug 48506] New: Support shared themes installation

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48506

Bug ID: 48506
           Summary: Support shared themes installation
           Product: Wine
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Wine 5.0 has new feature (https://www.winehq.org/announce/5.0): "The Gecko and
Mono add-ons support shared installation, where the files are used directly
from a global location under /usr/share/wine instead of being copied into every
new prefix".
It would be great to implement the same thing for themes (e.g. for placing
.msstyles files to /usr/share/themes directory).