I've posted an updated version of the IC mod here:
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In addition to being an IC patch, it has fixes to a few major bugs in the 0.15.3 base game: button to unlock the map icon when it gets greyed out, fixes to the (Aunt) Diane path being stuck after the mouse/bedroom scene, fixes garden not going back to normal after the infestation quest is completed, and I've added calls the Ren'py system and renderer memory cleanup functions to the game that are ran regularly to help mitigate the memory leaks in 0.15.3.
And this one adds more dialogue IC restoration stuff, and other dialogue tweaks either for fun or profit.