Module registry 

Registry traits and implementations for named items.

This module provides:

• A unified Registry trait for consistent registry interfaces
• PaletteRegistry for storing named palettes and resolving palette references
• SpriteRegistry for storing sprites and variants with transform support
• TransformRegistry for storing user-defined transforms
• CompositionRegistry for storing layered sprite compositions
• Renderable enum for unified sprite/composition lookup

Most registries support lenient mode (warnings + fallback) and strict mode (errors).

Structs

CompositionRegistry

Registry for named compositions.

LenientResult

Resolution result for lenient mode - always succeeds but may have warnings.

PaletteRegistry

Registry for named palettes.

PaletteWarning

Warning when resolving a palette in lenient mode.

ResolvedPalette

A resolved palette ready for rendering - maps tokens to color strings.

ResolvedSprite

A resolved sprite ready for rendering.

SpriteRegistry

Registry for sprites and variants.

SpriteWarning

Warning when resolving a sprite or variant in lenient mode.

TransformRegistry

Registry for user-defined transforms.

Enums

PaletteError

Error when resolving a palette in strict mode.

PaletteSource

Indicates where the resolved palette came from.

Renderable

A renderable entity that can be either a sprite or a composition.

SpriteError

Error when resolving a sprite or variant.

Constants

MAGENTA_FALLBACK

Magenta fallback color for missing palettes/tokens

Traits

Registry

Common trait for registries that store named items.

Functions

lookup_renderable

Look up a renderable by name across sprite and composition registries.