Thank you for your response.
The workflow is quite simple:
Say you have a game that needs to be themed according to public holidays or special occasions. The game mechanics do not change, it is the same game, BUT when you for an example have explosions that are ordinarily fire and smoke today, tomorrow it could be hearts and rainbows, or for halloween it could be pumpkins and witches.
The whole approach here is to theme my animations, explosions, particles ... whatever it is.
This is such a simple thing to do, but it has become a really difficult and time consuming excercise.
The basics: setup a sprite with (n) animations. Load the spritesheet from url to support theming, and continue on our mary way...
Hope to hear from the community.