fix：一些显示bug

tools/icon_work/chk_alpha.py

@@ -0,0 +1,13 @@
+from PIL import Image
+im = Image.open(r"C:\Users\28579\Downloads\resources\resources\netherstar.png")
+print("模式:", im.mode)
+print("尺寸:", im.size)
+print("有 alpha:", im.mode in ("RGBA", "LA"))
+if im.mode in ("RGBA", "LA"):
+    a = im.getchannel("A")
+    print("alpha bbox:", a.getbbox())
+    print("alpha 范围:", a.getextrema())
+    # 采样角落像素，看是不是白/透明
+    w, h = im.size
+    print("左上角:", im.getpixel((0, 0)))
+    print("中心:", im.getpixel((w // 2, h // 2)))