v1.5.5 fix bugs and new theme

theme/default/theme.py

@@ -1,8 +1,12 @@
+import os
 theme_name = "default"
 theme_version = "1.0.0"
-head = "{user}@{address}$ "
 
-import os
+user = os.getlogin()
+address = os.getcwd()
+head = f"\033[31m{user}\033[0m@\033[32m{address}\033[0m$ "
+
+
 # 获取当前文件的绝对路径
 current_file_path = os.path.abspath(__file__)