Infragistics Blog - #Theming

Ignite UI for Angular 22.2 adds IgxVirtualScrollComponent, Angular Signal Forms support in ten form controls, and standard CSS scrollbars. This post covers each change, the theming and button group breaking changes, and the ng update path.

Ignite UI for Angular 22.1: full zoneless support, tree-shakable scoped component styles that roughly halve pre-built themes, strict TypeScript typings, and removal of the hammerjs peer dependency.

Ignite UI for Angular 22 ships derived themes for the Data Grid - set three color properties on grid-theme() and nested buttons, inputs, chips, and scrollbars realign automatically - plus a dedicated excel-filtering-theme() function and an updated Select dropdown position. Two default changes need attention on upgrade: input type is now box (ng update preserves the old line look), and Select positioning moved to AutoPositionStrategy.