diff --git a/create_image.py b/create_image.py
index f58b152..dd1546d 100644
--- a/create_image.py
+++ b/create_image.py
@@ -29,48 +29,44 @@ def create_background(input: bytes, width: int, height: int):
 
 def draw_text_with_shadow(image: Image.Image,
                           text: str,
-                          posx: int,
-                          posy: int,
-                          font):
+                          posx: int | float,
+                          posy: int | float,
+                          font: ImageFont.ImageFont | ImageFont.FreeTypeFont):
     draw = ImageDraw.Draw(image)
     draw.text((posx + 2, posy + 2), text, font=font, fill='black')
     draw.text((posx, posy), text, font=font, fill='white')
 
 def draw_motd_text_with_shadow(image: Image.Image,
                                text: str,
-                               posx: int,
-                               posy: int,
-                               font):
+                               posx: int | float,
+                               posy: int | float,
+                               font: ImageFont.ImageFont | ImageFont.FreeTypeFont):
     draw = ImageDraw.Draw(image)
-    w1, _, w2, _ = draw.textbbox((0, 0), text.strip(), font=font)
-    weight = w2 - w1
-    motd_list = foramt_motd(text.strip(), weight)
+    motd_list = foramt_motd(text.strip(), draw, font)
     for pos, color, text in motd_list:
-        w1, _, w2, _ = draw.textbbox((0, 0), text, font=font)
-        weight = w2 - w1
-        draw.text((posx + pos + 1 - weight, posy + 1), text, font=font, fill='black')
-        draw.text((posx + pos - weight, posy), text, font=font, fill=getrgb(color))
+        draw.text((posx + pos + 1, posy + 1), text, font=font, fill='black')
+        draw.text((posx + pos, posy), text, font=font, fill=getrgb(color))
 
 def create_image(background: bytes,
                  icon: str | None,
                  text_list: list[str],
                  motd_list: list[str],
                  font_url: str | None,
-                 image_size: list[int] = [0, 0]):
+                 image_size: tuple[int, int] = (0, 0)):
     # 图片尺寸
-    if image_size == [0, 0] or image_size == []:
+    if type(image_size) != type(tuple()) or len(image_size) != 2:
+        assert ValueError("image_size is invalid")
+    
+    if image_size[0] == 0 and image_size[1] == 0:
         width = 1200
         height = 400
-    elif len(image_size) == 2:
+    else:
         width = image_size[0]
         height = image_size[1]
-    else:
-        assert ValueError("image_size is invalid")
         
     if (len(text_list) + len(motd_list)) * 20 + 20 > height:
         height = (len(text_list) + len(motd_list)) * 20 + 20
-    else:
-        font_size = height // 12
+    font_size = height // 12
     if font_size * 20 > width - width // 2.5:
         font_size = (width - width // 2.5) // 20
     
@@ -92,7 +88,7 @@ def create_image(background: bytes,
         small_image = Image.open(BytesIO(icon)).resize((small_size, small_size),
                                                        Image.Resampling.LANCZOS)
 
-    image.paste(small_image, (30, height // 2 - small_size // 2))
+    image.paste(small_image, (int(width / 3 - small_size), int(height / 2 - small_size / 2)))
 
     # 设置字体
     if font_url == None:
@@ -106,13 +102,13 @@ def create_image(background: bytes,
     for i in range(motd_list_size):
         draw_motd_text_with_shadow(image,
                                    motd_list[i],
-                                   width // 2.5,
+                                   width / 2.5,
                                    start_posy + font_size * 1.2 * i,
                                    font)
     for i in range(text_list_size):
         draw_text_with_shadow(image,
                               text_list[i],
-                              width // 2.5,
+                              width / 2.5,
                               start_posy + font_size * 1.2 * (i + motd_list_size),
                               font)
     
diff --git a/motd_formatter.py b/motd_formatter.py
index 9ba2aab..9ebfe49 100644
--- a/motd_formatter.py
+++ b/motd_formatter.py
@@ -1,3 +1,5 @@
+from PIL import ImageDraw, ImageFont
+
 def format_color(color_code: str) -> str:
     """
     将Minecraft颜色代码转换为对应的颜色名称
@@ -30,7 +32,10 @@ def format_color(color_code: str) -> str:
     }
     return color_map.get(color_code.lower(), 'white')
 
-def foramt_motd(data: str, weight: int) -> list[tuple[int, str, str]]:
+def foramt_motd(data: str,
+                draw: ImageDraw.ImageDraw,
+                font: ImageFont.ImageFont | ImageFont.FreeTypeFont
+                ) -> list[tuple[int, str, str]]:
     """
     格式化 MOTD 文本，去除多余的空格和换行符
     
@@ -41,23 +46,25 @@ def foramt_motd(data: str, weight: int) -> list[tuple[int, str, str]]:
         list: 格式化后的 MOTD 文本
     """
     iter = 0
-    character_count = 0
     motd_list = []
     color_state = "#FFFFFF"
     data_size = len(data)
+    weight_count = 0
     while iter < data_size:
         if data[iter] == "§":
             if iter + 1 < data_size:
                 color = data[iter + 1]
                 text = ""
                 iter += 2
-                character_count += 1
                 while iter < data_size and data[iter] != "§" and data[iter] != "\n":
                     text += data[iter]
                     iter += 1
                 if color != "l":
                     color_state = format_color(color)
-                motd_list.append(((iter - character_count * 2) / data_size * weight, color_state, text))
+                w1, _, w2, _ = draw.textbbox((0, 0), text, font=font)
+                seg_weight = w2 - w1
+                motd_list.append((weight_count, color_state, text))
+                weight_count += seg_weight
             else:
                 iter += 1
         else:
@@ -65,5 +72,8 @@ def foramt_motd(data: str, weight: int) -> list[tuple[int, str, str]]:
             while iter < data_size and data[iter] != "§" and data[iter] != "\n":
                 text += data[iter]
                 iter += 1
-            motd_list.append(((iter - character_count * 2) / data_size * weight, "white", text))
+            w1, _, w2, _ = draw.textbbox((0, 0), text, font=font)
+            seg_weight = w2 - w1
+            motd_list.append((weight_count, "#FFFFFF", text))
+            weight_count += seg_weight
     return motd_list