Kestrel

Style: light mode, sage-tinted off-white canvas, dark olive-black text, zero corner radius, plain sans.

Layout: narrow sidebar beside a centred column with a composer above three side-by-side explainer columns.

Components: New thread button, dark-mode switch, prompt suggestion list, bullet capability lists, build-version label.

Vibe: sober, textual, utilitarian — AI assistants.