Change list row image-button style

Author: lassekongo83

gtk/src/adw-gtk3/gtk-3.0/_common.scss

@@ -1105,13 +1105,20 @@ button.color {
 }
 
 // list buttons
-// tone down as per new designs, see issue #1473, #1748
 list row button.image-button:not(.flat) {
   @extend %undecorated_button;
-  border: 1px solid gtkalpha($borders_color, .5);
-  &:hover { @include button(hover); }
-  &:active,
-  &:checked { @include button(active); }
+  //border: 1px solid gtkalpha($borders_color, .5);
+  &:hover {
+    background-color: $view_hover_color;
+  }
+  &:active {
+    background-color: $view_active_color;
+  }
+  &:checked {
+    background-color: $view_selected_color;
+    &:hover { background-color: $view_selected_hover_color; }
+    &:active { background-color: $view_selected_active_color; }
+  }
 }
 
 // *********