Make some improvements to the themes

Author: donfaustinocortizone

Nashville96 Gruvbox/gtk-3.0/assets/arrow-down-selected.png

@@ -12,7 +12,7 @@ Make sure that all changes made here are part of the Caja application.
 .caja-desktop-window .rubberband,
 .caja-navigation-window .rubberband {
   border: 1px solid @selected_bg_color;
-  background: rgba(60,56,54,0.5); }
+  background: rgba(54,54,70,0.5); }
 
 /* This will prevent caja from printing over the desktop wallpaper */
 .caja-desktop-window grid scrolledwindow {

Nashville96 Gruvbox/gtk-3.0/assets/arrow-down.png

@@ -24,7 +24,7 @@ XfdesktopIconView.view {
     color: @font_bright; }
   XfdesktopIconView.view .rubberband {
     border: 1px dotted @xfd_rubberband_outline;
-    background: rgba(60,56,54,0.01); }
+    background: rgba(54,54,70,0.01); }
 
 /* XFCE Panel Bar */
 .xfce4-panel {