diff --git a/src/renderer/image.c b/src/renderer/image.c
index a4db5a7..51b4708 100644
--- a/src/renderer/image.c
+++ b/src/renderer/image.c
@@ -25,11 +25,10 @@ uint32_t *generate_wallpaper(const wallpaper_config_t *wallpaper_config,
   if (!final_image) return NULL;
 
   imlib_context_set_image(final_image);
-  imlib_image_set_has_alpha(false);
+  imlib_image_set_has_alpha(true);
 
-  /* 填充背景色 */
-  imlib_context_set_color(0, 0, 0, 255);
-  imlib_image_fill_rectangle(0, 0, screen_width, screen_height);
+  /* 重置像素数据 */
+  imlib_image_clear();
 
   const monitor_t *monitor = monitors;
   uint32_t monitor_index = 0;
@@ -118,9 +117,8 @@ uint32_t *generate_icon_pixels(const char *image_path, uint32_t width,
 
   Imlib_Image target_img = imlib_create_image(width, height);
   imlib_context_set_image(target_img);
-  imlib_image_set_has_alpha(false);
-  imlib_context_set_color(0, 0, 0, 255);
-  imlib_image_fill_rectangle(0, 0, width, height);
+  imlib_image_set_has_alpha(true);
+  imlib_image_clear();
 
   imlib_blend_image_onto_image(img, 1, src_x, src_y, src_width, src_height,
                                padding, padding, dst_width, dst_height);