Minimalist black-and-white line icon showing a calendar with a clock moving to a test tube with a clock, representing a laboratory workflow.

Create a minimalist black-and-white line icon for a chemical laboratory workflow. The icon should visually represent the transition from "Order Datetime" to "Collection Datetime" for a laboratory sample. Design Requirements: Canvas size: 99 × 99 pixels Background: transparent (PNG with alpha channel) Style: clean vector line art, monochrome black outlines only No gradients, shadows, textures, or colors Consistent stroke width (approximately 2–3 px at 99×99 scale) Optimized for use as a UI icon in healthcare/laboratory software High legibility at small sizes Composition: On the left: a simple calendar or clock symbol representing Order Datetime In the center: a right-pointing arrow indicating process progression On the right: a laboratory test tube containing a small sample, paired with a clock/calendar element representing Collection Datetime The workflow should clearly communicate: order placed → sample collected Keep all elements balanced and centered within the square canvas Use ample negative space to avoid visual clutter Visual Style Keywords: minimalist, healthcare iconography, laboratory workflow, vector outline, line diagram, medical informatics, clinical laboratory, scalable icon, transparent background, SVG-style, flat monochrome, professional software UI asset Ver más