# Experimental Features The following features are unstable. Use them if you really need and perpare to follow the API changes. ## Customize Theme ```js // ... import naive from 'naive-ui' naive.styles.light.override({ derived: { primaryColor: 'rgb(255, 0, 0)', primaryHoverColor: 'rgb(0, 255, 0)', primaryActiveColor: 'rgb(0, 0, 255)' } }) Vue.use(naive) ``` For specific variables, please see source code. ### Use Tusimple Theme ```js // ... import tusimpleTheme from 'naive-ui/themes/tusimple' import naive from 'naive-ui' naive.use(tusimpleTheme) Vue.use(naive) ```