Changes shift key icon & highlight/caps UX.

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

Index: ui/keyboard/resources/elements/kb-key.html
diff --git a/ui/keyboard/resources/elements/kb-key.html b/ui/keyboard/resources/elements/kb-key.html
index a7273fb639076209ce905562f858cb796f2181bb..478ce99f89797ce77924fff42ab45efe46eeb356 100644
--- a/ui/keyboard/resources/elements/kb-key.html
+++ b/ui/keyboard/resources/elements/kb-key.html
@@ -14,7 +14,7 @@
         border-style: solid;
         border-width: 0px 0px;
         color: #666666;
-        font-family: 'Droid Sans';
+        font-family: roboto-bold;
         font-weight: 100;
       }
 
@@ -53,8 +53,8 @@
         height: 30%;
       }
 
-      :host([image].search) .key {
-        height: 80%;
+      :host([image].tab) .key {
+        height: 40%;
       }
 
       :host .hint,
@@ -77,6 +77,10 @@
         font-size: 70%;
       }
 
+      :host(.dark.active) {
+        background-color: #cccccc;
+      }
+
       :host(.active) {
         background-color: #dddddd;
         background-size: cover;