Function parseChunk

parseChunk(
    ctx: IDecodeContext,
    header: IPngHeaderDetails,
    chunk: IPngChunk,
): IPngMetadataTransparency
tRNS Transparency

Spec: https://www.w3.org/TR/PNG/#11tRNS
Parameters
- ctx: IDecodeContext
- header: IPngHeaderDetails
- chunk: IPngChunk
Returns IPngMetadataTransparency
- Defined in src/png-codec/decode/chunks/chunk_tRNS.ts:31