Quality & DPR (q, dpr)

q selects a tier, not a number: eco, std (the default), or hi. Tiers keep the cache tight — three variants instead of a hundred — and encode our judgment about the codec so you don’t have to have any.

dpr:2 marks a render as targeting high-density screens. The pipeline serves double the pixels at a lower encode quality — dense screens hide compression artifacts, so the result looks identical and ships fewer bytes than a naive 2x. The numeric values per tier/DPR are in the grammar reference.

`w:128,q:eco.webp` — eco tier — compare the byte sizes, not the pixels
`https://img.brandcenter.io/i/bc/aHVFd2tZTjRGZW5lTlh5T09RVHJmRXNFZUVobjEzdkQ/1/w:128,q:eco.webp`

`w:128,q:std,dpr:2.webp` — 2x pixels, tuned-down quality
`https://img.brandcenter.io/i/bc/aHVFd2tZTjRGZW5lTlh5T09RVHJmRXNFZUVobjEzdkQ/1/w:128,q:std,dpr:2.webp`