shadow tweak

src/scss/_dashboard.scss

@@ -464,12 +464,16 @@
 
   .UppyDashboard--wide & {
     top: 8px;
-  left: 8px;
-  width: 15px;
-  height: 15px;
+    left: 8px;
+    width: 15px;
+    height: 15px;
   }
 }
 
+.UppyDashboardItem-sourceIcon .UppyIcon {
+  filter: drop-shadow(0 0 1px rgba(0,0,0,.15));
+}
+
 .UppyDashboardItem-previewInnerWrap {
   width: 100%;
   height: 100%;
@@ -498,10 +502,6 @@
     z-index: $zIndex-2;
   }
 
-.UppyDashboardItem-sourceIcon .UppyIcon {
-  filter: drop-shadow(0 0 1px rgba(0,0,0,.4));
-}
-
 
 .UppyDashboardItem-preview img {
   width: 100%;