Multimonitor setup: Outline display borders in workspace app

Submitted by Joachim Durchholz

Assigned to Nick Schermer

Link to original bug (#12128)

Description

Created attachment 6410 Current workspace appearance

(Not sure whether "workspace app" is the right identifier, http://docs.xfce.org/xfce/xfwm4/workspaces describes its settings.)

Current situation (as of xfwm4 version 4.12.3, I couldn't find that version in the version list): The workspace app shows each workspace as a rectangle, with application windows indicated by white rectangles on a dark background (I'm aware that this is theme-dependent, I just don't know how to identify the colors in a theme-independent way).

Proposed situation: Draw a light gray border for each physical display, in addition to the window borders. The display borders could be drawn on top of the windows borders to mimick how a real display border "cuts through" program windows.

Attachment 6410, "Current workspace appearance":

Version: 4.12.0