You can find most of the stuff for adding in the text in the ATL tag's implementation. It's near the bottom of the atl_tag function in the if 'kind == renpy.TEXT_TAG' portion. Should be easy enough to find. Then take that bit and copy it into the text tag functions you'd like it to work with, ;ike 'bounce_tag' and 'scare_tag'. Just be sure you make it use the appropriate wrapper. Such as the BounceText for the bounce_tag and such. Probably should've done it myself a while ago but got lazy.
Though that said, I should advise that the ChaosText wrapper should not be fed an image for it's child. That effect relies on manipulating text style stuff. So feeding it in an Image or the like will likely break it. So maybe just be sure to skip that one.