I would like to add other blocks and items to work with Sparkle (From other mods)

Using a datapack, you can add any blocks or items to the #sparkly tag, including modded ones. You just need to type the identifier into a list and save it at data/sparkle/tags/blocks/sparkly.json or data/sparkle/tags/items/sparkly.json for blocks and items respectively.

For example, the following will make dirt sparkle.

{
	"replace": false,
	"values": [
		"minecraft:dirt"
	]
}

Ty :D