此 patch 来自地球边大佬
主界面顶部空白
packages/apps/Settings/res/values/dimens.xml
+ <dimen name="avatar_length">10dp</dimen>+ <dimen name="avatar_margin_top">10dp</dimen><dimen name="avatar_margin_end">24dp</dimen>
二级菜单顶部空白
frameworks\base\packages\SettingsLib\CollapsingToolbarBaseActivity\res\values-v31\dimens.xml
+<dimen name="settingslib_toolbar_layout_height">119dp</dimen>+<dimen name="settingslib_scrim_visible_height_trigger">97dp</dimen>
