diff --git a/base/web/html/html.go b/base/web/html/html.go
index 3eeff15b..e49fe980 100644
--- a/base/web/html/html.go
+++ b/base/web/html/html.go
@@ -1,10 +1,11 @@
 package html
 
 const (
-	DARK  = "dark"
-	LIGHT = "light"
-	WHITE = "white"
-	BLACK = "black"
+	DARK   = "dark"
+	LIGHT  = "light"
+	WHITE  = "white"
+	BLACK  = "black"
+	SILVER = "silver"
 )
 
 const (
diff --git a/core/chat/header.go b/core/chat/header.go
index 5f23db76..4fc1882b 100644
--- a/core/chat/header.go
+++ b/core/chat/header.go
@@ -91,7 +91,7 @@ func init() {
 					return
 				}
 				m.Cmd(cli.SYSTEM, "osascript", "-e", `tell app "System Events" to tell appearance preferences to set dark mode to `+
-					kit.Select(ice.FALSE, ice.TRUE, kit.IsIn(kit.Select(html.DARK, arg, 0), html.DARK, html.BLACK)))
+					kit.Select(ice.FALSE, ice.TRUE, kit.IsIn(kit.Select(html.DARK, arg, 0), html.DARK, html.BLACK, html.SILVER)))
 			}},
 		}, ctx.ConfAction(SSO, "")), Hand: func(m *ice.Message, arg ...string) {
 			m.Option("language.list", m.Cmd(nfs.DIR, path.Join(ice.SRC_TEMPLATE, m.PrefixKey(), aaa.LANGUAGE), nfs.FILE).Appendv(nfs.FILE))
diff --git a/core/chat/macos/desktop.css b/core/chat/macos/desktop.css
index 6854e8d2..b57ab79c 100644
--- a/core/chat/macos/desktop.css
+++ b/core/chat/macos/desktop.css
@@ -33,7 +33,8 @@ fieldset.macos.desktop>div.output>div.desktop>fieldset>legend { padding-right:10
 fieldset.macos.desktop>div.output>div.desktop>fieldset>legend:not(:hover) { background-color:unset; }
 fieldset.macos.desktop>div.output>div.desktop>fieldset>form.option>*:not(.textarea) { margin:10px 0px 10px 10px; }
 fieldset.macos.desktop>div.output>div.desktop>fieldset>form.option>div.icon { margin-left:0; margin-top:10px; margin-bottom:8px; }
-fieldset.macos.desktop>div.output>div.desktop>fieldset>form.option>div.item.button>span.icon { font-size:26px; line-height:28px; }
+fieldset.macos.desktop>div.output>div.desktop>fieldset>form.option>div.item.button>span.icon { font-size:32px; line-height:32px; }
+fieldset.macos.desktop>div.output>div.desktop>fieldset>form.option>div.item.button.prunes>span.icon { font-size:20px; line-height:32px; }
 
 fieldset.macos.desktop>div.output>div.desktop>fieldset>form.option>div.item.icons { margin-left:0; }
 fieldset.macos.desktop>div.output>div.desktop>fieldset>form.option>div.item:last-child { margin-right:20px; }