Decompiler artifact: the local function `SetCardNumLabel(UILabel, int, bool)` had its
third parameter recovered as `flag`, but the (also-decompiled) call sites pass it by the
named argument `isRed:` (lines 875-876). Param name vs. named-arg mismatch -> CS1739.

Mechanical fix (zero logic change): rename the parameter `flag` -> `isRed` and its single
use in the body. No behavior change.

--- Engine/UICardList.cs  (local fn ~line 878)
-		static void SetCardNumLabel(UILabel label, int num3, bool flag)
+		static void SetCardNumLabel(UILabel label, int num3, bool isRed)
 		{
 			label.text = num3.ToString();
-			label.color = (flag ? LabelDefine.TEXT_COLOR_RED : LabelDefine.TEXT_COLOR_NORMAL);
+			label.color = (isRed ? LabelDefine.TEXT_COLOR_RED : LabelDefine.TEXT_COLOR_NORMAL);
 		}