Canton 0.0.8

• Require an explicit, non-empty output directory in imagesave().
• Validate unsupported plot objects before creating directories.
• Make setfont() validation side-effect-free; code blocks apply temporary settings restored on exit, including errors and nested calls.
• Remove persistent font hooks and platform font registration.
• Retain resetfont() as a documented compatibility no-op.
• Add a verified reference for the ggplot2 graphics framework.
• Add regression tests for state restoration and export failure handling.

Canton 0.0.7

New features

• Added imagesave() for saving ggplot2, pheatmap/grid, ComplexHeatmap, recorded base R, lattice, and function-generated plots in one or more formats.
• Added setfont() for checked, cross-platform plotting font configuration.
• Added reusable figure_preset() settings for publication, single-column, double-column, high-resolution, and presentation output.
• Added theme_canton() and discrete/continuous ggplot2 colour and fill scales.
• Added fontlist(), fontcheck(), and resetfont() for safer font workflows.

Improvements and fixes

• Fixed hue() for unknown palettes and added case-insensitive matching.
• Fixed using() with no arguments and added support for strings and character vectors.
• Made mkdir() idempotent and added explicit validation and useful returns.
• Updated package metadata, documentation, examples, and tests.