Mathigon

This update includes many additions and improvements to Polypad: • 3D geometry, including the ability to create your own nets and solids • Equation editor and function plotting • Rich text editor and new table component with spreadsheet features • Dynamic geometry environment • New pen brushes (marker, highlighter) for a full digital whiteboard • Polyhedral dice, playing cards and domino tiles • Abacus, Bucket of Zero, Egg Tangram, Tantrix, nature-themed Penrose tiles, irregular pentagon tiles, number frames, number grids, and dot arrangements • Decimal and percentage labels for fraction bars/circles, partially highlight fraction bars, colour mixing when merging fraction bars • Transparency support and direct RGB input fields in colour picker • Lock tiles and change their layering order • "Cut" and "Join" tools for polygons • Checkerboard background and improved dark mode • Numerous performance improvements and bug fixes