Generate duotone icons

Create one duotone icon illustration.
Subject: [subject]
Meaning and use: [meaning]
Dominant color: [color]

Exactly two flat ink tones: the dominant color and a pale tint of that same hue, plus white background. Use broad dark structural blocks and pale interior planes; avoid enclosing every edge with an outline. Frontal geometric shapes, no depth, gradients, shadows, texture or extra accent colors.

Square canvas, at least 1024 × 1024. Center one complete subject with 15% empty margin; readable at 96px. Pure opaque white background. No text, numbers, logos, watermark, frame, loose decorations or extra objects. Deliver one icon, not a sheet. If an example image is attached, use only its style; replace its subject with the requested subject.