[Redesign] Small pass at dashboards

Summary: Mostly for testing, I think these need to be re-written to just use PHUIObjectBox, which means re-writing ManiphestView or whatever. Suspect much work.

Test Plan: visist a few dashboards

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D12764

src/view/AphrontDialogView.php

@@ -12,7 +12,7 @@ final class AphrontDialogView extends AphrontView {
   private $class;
   private $renderAsForm = true;
   private $formID;
-  private $headerColor = PHUIActionHeaderView::HEADER_LIGHTBLUE;
+  private $headerColor = PHUIActionHeaderView::HEADER_WHITE;
   private $footers = array();
   private $isStandalone;
   private $method = 'POST';