diff --git a/client/src/components/Overlay.tsx b/client/src/components/Overlay.tsx
new file mode 100644
index 0000000..5063a5e
--- /dev/null
+++ b/client/src/components/Overlay.tsx
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2022 Savoir-faire Linux Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this program.  If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+import { styled } from '@mui/material';
+
+const OverlayBase = styled('div')({
+  position: 'absolute',
+  width: '100%',
+  height: '100%',
+  zIndex: 100,
+});
+
+export const FileDragOverlay = styled(OverlayBase)({
+  backgroundColor: 'black',
+  opacity: '30%',
+});
+
+type CircleMaskOverlayProps = {
+  // Size in pixels or percentage. The percentage is relative to the length of the diagonal of the box
+  size: string;
+};
+
+export const CircleMaskOverlay = styled(OverlayBase)<CircleMaskOverlayProps>(({ size }) => ({
+  backgroundImage: `radial-gradient(circle at center, rgba(0, 0, 0, 0) ${size}, rgba(0, 0, 0, 0.5) ${size})`,
+}));