diff --git a/source/constants.py b/source/constants.py
index 5bd9b05..0c30a19 100755
--- a/source/constants.py
+++ b/source/constants.py
@@ -58,6 +58,7 @@ RED          = (255,   0,   0)
 PURPLE       = (255,   0, 255)
 GOLD         = (255, 215,   0)
 GREEN        = (  0, 255,   0)
+YELLOWGREEN  = (  55, 200,   0)
 
 # 退出游戏按钮
 EXIT = 'exit'
diff --git a/source/state/level.py b/source/state/level.py
index d35fbc0..5865aca 100644
--- a/source/state/level.py
+++ b/source/state/level.py
@@ -1475,7 +1475,7 @@ class Level(tool.State):
         # 常数为预计值
         filledBarRect = (self.level_progress_zombie_head_image_rect.x + 3, self.level_progress_bar_image_rect.y + 6, int((150 * self.waveNum) / (self.map_data[c.NUM_FLAGS] * 10)) + 5, 9)
         # 画填充的进度条
-        pg.draw.rect(surface, c.GREEN, filledBarRect)
+        pg.draw.rect(surface, c.YELLOWGREEN, filledBarRect)
         
         # 画旗帜
         for i in range(self.numFlags):