[Feature Request] (<animation></animation>) sprite support for themes

[mc2programmer]

trafficstars

I am not sure if this is already implemented as sdl2 already supports sprite animations (if it is please disregard) add an tag to themes that supports all the parameters for sprite animations. This would greatly improve the customization/creation of themes. Gets rid of the need for other silly low quality implementations such as animated gif support, and should be much easier to implement as SDL2 already supports sprites.

[benjdero]

I heavily support this feature request.

The reason is this is something I had in mind since a long time, it could have nice use case in the grid view, to add a "pulse effect" to the selector for example.

I never got time to look at how to implement that, but I hope it happen at lower level (like at the texture level), so both ImageComponent and NinePatchComponent, which have completely different behavior, could both use that new feature.