A toggle is a control that allows you to switch between different modes, features, or settings. You can use toggles to change how something looks or works, for example by changing the background color of a button. You can also use toggles to change the amount of content displayed. Toggles are used in many everyday technology devices and software applications, including smartphones and tablets.
When using a toggle, be sure to make the state of the toggle clear. A good way to do this is by using a high-contrast color for the on position and an off position. This helps users see when the toggle has changed states and provides a visual signal that the feature is on or off. Also consider the societal and cultural implications of using a particular color for a toggle state as this may affect how it is interpreted by your audience.
A toggle should be able to be re-configured dynamically at runtime. This is important for testing purposes, as it can help with debugging and enabling new functionality in production. Toggle configurations that require a re-deploy of the codebase are not ideal and can slow down the test cycle significantly, which negatively impacts the vital feedback loop provided by CI/CD.
