fix Plugins active

Plugin.php

@@ -3,21 +3,27 @@
  * 页面黑白显示插件（支持时间段、指定日期、每月/每年循环）
  *
  * @package GrayModePlugin
- * @author Your
- * @version 1.1.0
+ * @author DylanWu
+ * @version 1.1.1
  * @link https://your.site
  */
-class GrayModePlugin implements Typecho_Plugin_Interface
+class GrayMode_Plugin implements Typecho_Plugin_Interface
 {
-    public static function activate()
-    {
-        Typecho_Plugin::factory('Widget_Archive')->header = [__CLASS__, 'changeheader'];
-    }
+	public static function activate()
+	{
+		Typecho_Plugin::factory('Widget_Archive')->header = __CLASS__ . '::render';
+	}
 
     public static function deactivate() {}
 
     public static function config(Typecho_Widget_Helper_Form $form)
     {
+		try {
+        $options = Typecho_Widget::widget('Widget_Options')->plugin('GrayModePlugin');
+        // 可选：读取配置值
+		} catch (Exception $e) {
+        // 不处理配置读取错误
+		}
         $start = new Typecho_Widget_Helper_Form_Element_Text(
             'startTime', NULL, '00:00', '开始时间', '格式如 08:00'
         );
@@ -42,13 +48,13 @@ class GrayModePlugin implements Typecho_Plugin_Interface
 
     public static function personalConfig(Typecho_Widget_Helper_Form $form) {}
 
-    public static function changeheader()
+    public static function render($archive)
     {
         $options = Typecho_Widget::widget('Widget_Options')->plugin('GrayModePlugin');
 
-        $start = $options->startTime;
-        $end = $options->endTime;
-        $dates = trim($options->specialDates);
+        $start = $options->startTime ?? '00:00';
+		$end = $options->endTime ?? '23:59';
+		$dates = isset($options->specialDates) ? trim($options->specialDates) : '';
         $now = date('H:i');
 
         // 判断是否在时间区间内