Update REQ-UI-WORLD-ICON: in-world building icons apply to the production
buildings, HQ, and defence stations only. Belts, splitters, and tunnels keep
their existing tile rendering so orientation/flow stays readable; their build
buttons still use icons, and tunnel_entry.svg is a build-button icon only.
Adjust the visuals.toml glyph note accordingly.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Y7N59FsLA5e2kuVdqe4Uhc
Malte Langkabel
ef0191132b