Package: clearlooks-phenix-theme
Version: 7.0.1-3

Using thunar in xfce or caja in mate, when selecting multiple files in
icon view by click and drag the mouse, the selected area is opaque and
covers the selected icons.

Releasing the mouse button shows that the files did get selected. You just
can't see the icons while you're selecting them.

Inserting one line in gtk-3.0/gtk-widgets.css seems to fix the problem.

--- gtk-widgets.css    2018-09-14 10:13:33.000000000 -0400
+++ gtk-widgets.css-new    2021-03-30 10:03:59.240908271 -0400
@@ -155,6 +155,7 @@
 }

 .rubberband,
+.view .rubberband,
 view rubberband,
 rubberband {
     background-color: alpha (@theme_selected_bg_color, 0.35);

--- gtk-widgets.css    2018-09-14 10:13:33.000000000 -0400

+++ gtk-widgets.css-new    2021-03-30 10:03:59.240908271 -0400
@@ -155,6 +155,7 @@
 }

 .rubberband,
+.view .rubberband,
 view rubberband,
 rubberband {
     background-color: alpha (@theme_selected_bg_color, 0.35);