FIX: color not working properly for traces in single plot (#6020)

Co-authored-by: pyansys-ci-bot <[email protected]>

Author: althaf-ansys

doc/changelog.d/6020.fixed.md

@@ -0,0 +1 @@
+color not working properly for traces in single plot

src/ansys/aedt/core/visualization/post/compliance.py

@@ -790,9 +790,9 @@ def _create_aedt_reports(self, pdf_report):
                             if isinstance(local_config["expressions"], dict):
                                 if trace in legacy_local_config["expressions"]:
                                     local_config["expressions"] = {trace: legacy_local_config["expressions"][trace]}
-                                elif len(legacy_local_config["expressions"]) == 1:
+                                elif len(legacy_local_config["expressions"]) > 0:
                                     local_config["expressions"] = {
-                                        trace: list(legacy_local_config["expressions"].values())[-1]
+                                        trace: list(legacy_local_config["expressions"].values())[0]
                                     }
                                 else:
                                     local_config["expressions"] = {trace: {}}