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When do you need theming variables in react?


Asked by Ramona Branch on Dec 15, 2021 React



I also mentioned the Theming in SASS article. If you built your app to be robust and smart up front, you may never need any theming variables in React, as you typically can handle it all in SASS alone. However, rarely is theming implemented until an app is much larger, so artifacts creep their way in.
Besides,
As a React developer, you might be thinking that you don't need variables in CSS. You have an entire JavaScript engine at your disposal! There are two reasons to switch to CSS variables in your React app: The ergonomics are nice. It unlocks new possibilities!
And, Semantic UI React does not have its own styling system and fully relies on the theming of Semantic UI. It's really powerful, you don't need to know LESS or CSS you can simply update values of variables or use styles from predefined themes. In fact, all you know about theming and styling of Semantic UI is fully applicable to Semantic UI React.
One may also ask,
Material UI React uses a Run-Time Theme via a custom CSS-in-JS solution. Inlining is particularly useful for Component libraries or even UI Frameworks because they tend to be mostly CSS heavy and with a couple of SVGs at most, both of which are efficiently inlined.
Thereof,
styled-components: A flexible way to style React components with CSS. It provides out-of-the-box theming support using a wrapper component called, <ThemeProvider>. This component is responsible for providing the theme to all other React components that are wrapped within it. We will see this in action in a minute.