Layout nits for the signin email confirmation dialog.

chrome/browser/resources/signin/signin_shared_css.html

Index: chrome/browser/resources/signin/signin_shared_css.html
diff --git a/chrome/browser/resources/signin/signin_shared_css.html b/chrome/browser/resources/signin/signin_shared_css.html
index 217e59c113f10590b45f9c54dfc74154aa53e477..5d9037c942a96ef6f05100474ac3a5d0fa047045 100644
--- a/chrome/browser/resources/signin/signin_shared_css.html
+++ b/chrome/browser/resources/signin/signin_shared_css.html
@@ -10,7 +10,7 @@
       body {
         margin: 0;
         /* Scrollbars are hidden as the sign-in dialogs are automatically
-        resized.*/
+         * resized. */
         overflow: hidden;
         padding: 0;
       }
@@ -41,13 +41,14 @@
         --paper-radio-button-checked-color: var(--google-blue-500);
         --paper-radio-button-ink-size: 40px;
         --paper-radio-button-label-spacing: 16px;
+        --paper-radio-button-unchecked-color: var(--paper-grey-600);
       }
 
       .container {
         background-color: white;
         color: #333;
         /* Scrollbars are hidden as the sign-in dialogs are automatically
-        resized.*/
+         * resized. */
         overflow: hidden;
         width: 448px;
       }