Two interlocking chain links, one acid green — the family mark for every Silent Mode product. Kit below: logo, wordmark, avatar, banner, palette, usage. Every asset is a scalable SVG; raster it to whatever platform demands a PNG.
Small palette on purpose — one accent, one text tone, three greys,
a couple of semantics. Same tokens the whole site's shared.css
exposes as CSS variables.
Anywhere Silent Mode itself is the subject: project sites, README banners, social profiles, presentation title slides. If a specific product is the subject (Theseus, Sirius, Prometheus, Hermes, Helios), prefer that product's own mark and reserve this one for the umbrella.
Give the mark clearance equal to one chain-link on every side. On the banner this is honoured by the left-margin; when placing the logo yourself, respect it.
The word "Mode" is in acid; the rest is body text. Don't reverse — "Silent" in acid + "Mode" in body doesn't read as this brand.
SVG is the canonical format. Any modern image tool can convert it to PNG at the size you need; Inkscape and rsvg-convert are the free defaults. Don't distribute a low-fidelity trace as "the logo".