Simplify code

Co-authored-by: Adam Turner <[email protected]>

Author: tomasr8

Lib/json/tool.py

@@ -31,9 +31,8 @@
 
 
 def _replace_match_callback(match):
-    for key in _colors:
+    for key, color in _colors.items():
         if m := match.group(key):
-            color = _colors[key]
             return f"{color}{m}{ANSIColors.RESET}"
     return match.group()