The MTP/M2P midpoint-between-two-points modifier existed as a typed transparent command only. Add it to the Shift+RMB snap override menu as an icon-only cell after Parallel (hover tooltip, no text) with a new osnap/mtp.svg marker, plus a context-menu entry while a point prompt is active.
The object-snap menu drew each mode's marker as a Unicode geometric glyph
(◻ △ ◯ …). The web build bundles only Fira Sans, which lacks them, so they
rendered as tofu boxes (#138). Add an SVG per snap mode under
assets/icons/osnap, map them via icons::osnap, and draw them with the same
tinted-SVG path the rest of the chrome uses — font-independent on every
platform.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
odofaro