diff --git a/gtk-3.0/assets/grid-selection-checked-dark.png b/gtk-3.0/assets/grid-selection-checked-dark.png
new file mode 100644
index 0000000..d5a21b7
Binary files /dev/null and b/gtk-3.0/assets/grid-selection-checked-dark.png differ
diff --git a/gtk-3.0/assets/grid-selection-checked.png b/gtk-3.0/assets/grid-selection-checked.png
new file mode 100644
index 0000000..6493126
Binary files /dev/null and b/gtk-3.0/assets/grid-selection-checked.png differ
diff --git a/gtk-3.0/assets/grid-selection-unchecked-dark.png b/gtk-3.0/assets/grid-selection-unchecked-dark.png
new file mode 100644
index 0000000..d1be1b5
Binary files /dev/null and b/gtk-3.0/assets/grid-selection-unchecked-dark.png differ
diff --git a/gtk-3.0/assets/grid-selection-unchecked.png b/gtk-3.0/assets/grid-selection-unchecked.png
new file mode 100644
index 0000000..414f78c
Binary files /dev/null and b/gtk-3.0/assets/grid-selection-unchecked.png differ
diff --git a/gtk-3.0/gtk-widgets-assets-dark.css b/gtk-3.0/gtk-widgets-assets-dark.css
index e5c07d6..ecf1549 100644
--- a/gtk-3.0/gtk-widgets-assets-dark.css
+++ b/gtk-3.0/gtk-widgets-assets-dark.css
@@ -112,3 +112,11 @@
 .menuitem.radio:active:insensitive {
     background-image: url("assets/menuitem-radio-checked-insensitive.png");
 }
+
+GtkIconView.content-view.cell.check {
+    background-image: url("assets/grid-selection-unchecked-dark.png");
+}
+
+GtkIconView.content-view.cell.check:active {
+    background-image: url("assets/grid-selection-checked-dark.png");
+}
diff --git a/gtk-3.0/gtk-widgets-assets.css b/gtk-3.0/gtk-widgets-assets.css
index ef45184..cf1fd56 100644
--- a/gtk-3.0/gtk-widgets-assets.css
+++ b/gtk-3.0/gtk-widgets-assets.css
@@ -112,3 +112,11 @@
 .menuitem.radio:active:insensitive {
     background-image: url("assets/menuitem-radio-checked-insensitive.png");
 }
+
+GtkIconView.content-view.cell.check {
+    background-image: url("assets/grid-selection-unchecked.png");
+}
+
+GtkIconView.content-view.cell.check:active {
+    background-image: url("assets/grid-selection-checked.png");
+}