添加文档并修复问题

konabot/plugins/memepack/__init__.py

@@ -2,7 +2,7 @@ from io import BytesIO
 from typing import Iterable, cast
 
 from nonebot import on_message
-from nonebot_plugin_alconna import (Alconna, Args, Field, Image, MultiVar, Text,
+from nonebot_plugin_alconna import (Alconna, Args, Field, Image, MultiVar, Option, Text,
                                     UniMessage, UniMsg, on_alconna)
 
 from konabot.common.nb.extract_image import PIL_Image, extract_image_from_message
@@ -143,12 +143,19 @@ async def _(msg: UniMsg, evt: Event, bot: Bot):
 
 snaur_display_cmd = on_alconna(Alconna(
     "卵总展示",
+    Option("--whiteness",   Args["whiteness", float],   alias=["-w"]),
+    Option("--black-level", Args["black_level", float], alias=["-b"]),
+    Option("--opacity",     Args["opacity", float],     alias=["-o"]),
+    Option("--saturation",  Args["saturation", float],  alias=["-s"]),
     Args["image", Image | None],
 ))
 
 @snaur_display_cmd.handle()
-async def _(img: PIL_Image):
-    img_processed = await draw_snaur_display(img)
+async def _(img: PIL_Image, whiteness: float = 0.0, black_level: float = 0.2,
+            opacity: float = 0.8, saturation: float = 0.85):
+    img_processed = await draw_snaur_display(
+        img, whiteness, black_level, opacity, saturation, 
+    )
     img_data = BytesIO()
     img_processed.save(img_data, "PNG")
     await snaur_display_cmd.send(await UniMessage().image(raw=img_data).export())