This archive contains all the README files documenting the artifact (https://doi.org/10.5281/zenodo.6644449) to reproduce the results presented in the "Customizable Visualization of Quality Metrics for Object-Oriented Variability Implementations" paper presented at SPLC 2022. It also contains: the codebases of JFreeChart before and after the maintenance actions presented in section 5.2, with the corresponding diff file, as well as excerpts of the SonarQube analysis of both projects showing the information presented in table 3; the Excel file used to obtain the data presented in the table 2. An exhaustive description of the archive can be found in the README.md file.