Dark / Light Calculator demonstrates a functional keypad and display across two visual themes. The interaction focuses on clear input feedback, predictable operator states, and a smooth theme transition without changing the calculator layout.
Utility apps, keypad studies, theme-system demonstrations, mobile widgets, and interaction prototypes.
Map every number and operator to a defined state, test long and invalid expressions, and connect both themes to shared semantic color tokens instead of styling each screen independently.
Accessibility: Give every key an accessible name, preserve strong contrast in both themes, support physical keyboard input, and ensure the current operation is communicated beyond visual highlighting.
Free for personal and commercial design projects. Please do not resell or redistribute UgokiUI resources as a competing template library.