* simurg/core/brand.py: single source of the mark geometry, colours, favicon and the report header band (scripts/brand now load it from there). * HTML reports (QC report, compare dashboard, methylation QC): offline SVG favicon, indigo header band with the mark, version and a sha256 of the data shown; Noto Sans font stack; methylation plots in Okabe-Ito colours. * README banner, guide logo, brand/blog links; branding brief updated to the final identity; Noto (OFL) and Okabe-Ito entries in THIRD_PARTY_NOTICES; CHANGELOG (Unreleased). Unit tests + P5 QC oracle: 285 passed; ruff and mypy clean. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01814GKVzZVL3FuF3DeiZXhv