[Redesign] Normalize header policy and object tags

Summary: Ref T8099, This adds a consistent background color to object and policy tags, and highlights them when they deviate from the normal. Still likely worth revamping 'closed' and 'review' state colors.

Test Plan: Review lots of diffs and tasks.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T8099

Differential Revision: https://secure.phabricator.com/D13399

src/applications/differential/constants/DifferentialRevisionStatus.php

@@ -68,7 +68,7 @@ final class DifferentialRevisionStatus extends Phobject {
     $tag = phutil_tag(
       'span',
       array(
-        'class' => 'phui-header-'.$color.' plr',
+        'class' => 'phui-header-status phui-header-'.$color,
       ),
       array(
         $img,

src/view/phui/PHUIHeaderView.php

@@ -110,7 +110,7 @@ final class PHUIHeaderView extends AphrontTagView {
     $tag = phutil_tag(
       'span',
       array(
-        'class' => "{$header_class} plr",
+        'class' => "phui-header-status {$header_class}",
       ),
       array(
         $img,