Add `css` helper to themes

components/lib/themes/helpers/css.js

@@ -0,0 +1,3 @@
+import { dt, SharedUtils } from 'primevue/themes';
+
+export const css = (style) => SharedUtils.object.getItemValue(style, { dt });

components/lib/themes/helpers/index.js

@@ -1,3 +1,4 @@
 export * from './color/index.js';
+export * from './css';
 export * from './dt';
 export { default as toVariables } from './toVariables';