World land contours: Natural Earth, 1:110m land (public domain).
https://www.naturalearthdata.com/about/terms-of-use/
Source: https://github.com/nvkelso/natural-earth-vector/blob/master/geojson/ne_110m_land.geojson
Decorative stamps and routes: redrawn as editable vector paths from the user reference.
Final ROAMO logo: supplied full logo.svg, original paths preserved.
