Themes: Configure Elevations using CSS variables #11295
Description
Is your feature request related to a problem? Please describe.
Currently, the component shadows(elevations) are configured via sass properties on the @theme mixin. We should make sure the configuration can be changed at runtime via CSS custom props. Similar to how it's done in the WC framework.
Describe the solution you'd like
The theming engine should output a new CSS variable --igx-elevation-factor that when modified at runtime changes the shadows/elevations of all components.