Function populateVariantColorCache

populateVariantColorCache(
    cacheKey: string,
    useExpSprite: boolean,
    battleSpritePath: string,
): Promise<void>
Fetch a variant color sprite from the key and store it in the variant color cache.
Parameters
- cacheKey: string
  The cache key for the variant color sprite
- useExpSprite: boolean
  Should the experimental sprite be used
- battleSpritePath: string
  The filename of the sprite
Returns Promise<void>
- Defined in src/sprites/variant.ts:122