diff -ur gnome-control-center-3.22.1.orig/panels/background/bg-colors-source.c gnome-control-center-3.22.1/panels/background/bg-colors-source.c
--- gnome-control-center-3.22.1.orig/panels/background/bg-colors-source.c	2015-03-27 09:06:50.000000000 -0500
+++ gnome-control-center-3.22.1/panels/background/bg-colors-source.c	2017-02-14 23:05:45.388798153 -0600
@@ -38,6 +38,7 @@
   int orientation;
   const char *pcolor;
 } items[] = {
+  { G_DESKTOP_BACKGROUND_SHADING_SOLID, -1, "#000000" },
   { G_DESKTOP_BACKGROUND_SHADING_SOLID, -1, "#db5d33" },
   { G_DESKTOP_BACKGROUND_SHADING_SOLID, -1, "#008094" },
   { G_DESKTOP_BACKGROUND_SHADING_SOLID, -1, "#5d479d" },
Only in gnome-control-center-3.22.1/panels/background: .bg-colors-source.c.swp
