liq| er| ess|: +annotation
liq| er| ess|: 9.1. hair, un-ommited pfxData
liq| er| ess|: 9.2. hair, +OutputCall::liq_hair(...)
liq| er| ess|: 9.3. hair, +OutputESA::liq_hair(...)
liq| er|: +o.a("ei_render(...)");
liq| er| ess|: bugfix: triangle index list is required
liq| er| test|: HappyWalk, reverse normal
liq| er| ess|: update test cases