Avian Atlas stamp embed

The CSS and JavaScript in this directory mirror the production stamp runtime from the AvianVisitors repository. The illustration files are lossless WebP derivatives of the matching bundled AvianVisitors PNGs, sized for this article. The paper, concrete, grain, and sparrow reference textures are lossless WebP derivatives of their documented AvianVisitors sources.

The bird-name comparison uses the same Caveat font and OFL license shipped in avian/frontend/fonts/ by AvianVisitors. The caption side reproduces the original under-bird renderer from commit 017739f2; the contour side uses the current production DOM and American Crow baseline captured at the article’s fixed example dimensions. Neither label is redrawn for the documentation.

Font authorship and licenses are recorded in fonts/stamp/SOURCES.md and fonts/stamp/OFL-1.1.txt. Texture provenance is recorded in assets/stamp/SOURCES.md.