Comment 4 for bug 1609874

Created attachment 1299949
Screenshot

Description of problem:
When opening the Gnome Shell Activities view the small "X" circle button is not visible anymore on top right corner of the window screenshot of a running application. I'm attaching a screenshot with a red circle highlighting the area where the close window button was normally visible. If you click your mouse in the area the button would be the window is closed.

Version-Release number of selected component (if applicable):
gnome-shell-3.24.2-1.fc26.x86_64

How reproducible: Always

Steps to Reproduce:
1. Open Activities view
2.
3.

Actual results: No icon visible.
Everytime I open the "Activities" view my system log is spammed with a dozen duplicate messages:
Jul 17 10:32:04 melchior.cchtml.com gnome-shell[1725]: Failed to load resource:///org/gnome/shell/theme/close-window.svg: Unrecognized image file format

Expected results: Icon visible. No log spam.

Additional info:
https://bugzilla.gnome.org/show_bug.cgi?id=769524