During June 2025, the developer focused on enhancing data visualization in the mne-tools/mne-python repository by addressing a bug affecting the visibility of channel traces in PSD plots when spatial_colors was enabled. Using Python and matplotlib, they adjusted RGB intensities to ensure that traces remained clearly distinguishable, thereby improving the readability and interpretability of scientific plots for neuroscience workflows. This targeted fix reduced user confusion and streamlined exploratory data analysis. The work demonstrated strong debugging and data visualization skills, contributing to open-source maintenance and reinforcing the robustness of widely used visualization tools within the neuroscience research community.