Keep code in _get_main_color as similar as possible to how it was before

Author: MarcoGorelli

src/_pytest/terminal.py

@@ -1085,14 +1085,17 @@ def _get_main_color(stats) -> Tuple[str, List[str]]:
                 known_types.append(found_type)
                 unknown_type_seen = True
 
+    # main color
     if "failed" in stats or "error" in stats:
-        return "red", known_types
+        main_color = "red"
     elif "warnings" in stats or unknown_type_seen:
-        return "yellow", known_types
+        main_color = "yellow"
     elif "passed" in stats:
-        return "green", known_types
+        main_color = "green"
     else:
-        return "yellow", known_types
+        main_color = "yellow"
+
+    return main_color, known_types
 
 
 def build_summary_stats_line(stats):