aquarel: Lightweight templating engine for matplotlib

Aquarel is a lightweight templating engine and wrapper around Matplotlib's rcparams designed to simplify plot styling. It enables programmatic definition and JSON serialization of themes, facilitating sharing and consistent visualization across projects. Beyond standard Matplotlib stylesheets, Aquarel introduces 'transforms' for aesthetics not achievable via rcparams alone, such as trimmed axes. The library is actively maintained with frequent minor updates.