Reskins the Compact and System VK to look closer to the IME VK.

ui/keyboard/resources/elements/kb-shift-key.html

Index: ui/keyboard/resources/elements/kb-shift-key.html
diff --git a/ui/keyboard/resources/elements/kb-shift-key.html b/ui/keyboard/resources/elements/kb-shift-key.html
index 4deab642e1bf79cbd79b08489b64ef068383fb97..1e1e7340074066310c5480dee20a9e07390b874b 100644
--- a/ui/keyboard/resources/elements/kb-shift-key.html
+++ b/ui/keyboard/resources/elements/kb-shift-key.html
@@ -19,13 +19,9 @@
       }
 
       .shift-light {
-        -webkit-box-shadow: inset 0 1px #101010, inset 0 -1px #444444;
-        background-image: -webkit-linear-gradient(#101010, #000000);
-        border: solid;
-        border-bottom-color: #1d1d1d;
-        border-top-color: #2d2d2d;
-        border-width: 1px 0;
-        height: 0.3em;
+        background-color: #ffffff;
+        border: none;
+        height: 0.2em;
         margin: 0 auto;
         position: relative;
         width: 1.8em;