UI Icon Set - Check, Cancel, and Navigation Symbols for Web & App Design #1528455 (License: Personal Use)

This icon set features five black-on-white symbols commonly used in user interfaces: a checkmark inside a square (confirmation), a standalone X (cancel/close), an X inside a circle (error or prohibition), an upward arrow inside a square (expand or navigate up), and a bold X (generic reject). Each icon uses consistent stroke weight and minimalist design for high legibility across devices.

Used in web and mobile app interfaces for form validation, modal dialogs, navigation controls, and status indicators; matches user intent for quick visual feedback during interactions like submitting, canceling, or expanding content.