Data Driven Enchantments and Changing Damage Types

In the latest snapshot, 24w18a, enchantments were completely overhauled to be data driven, and this new system even supports custom enchantments. I've played around with it for a few days now and I got to say that I love how powerful the new tools are. I can only think of one addition to make it better, and that would be the ability to specify a damage type for weapons and projectiles. My current idea is a sort of ice sword and bow enchantment to match, which would deal a custom 'player_frost' damage when used. I might be able to achieve something like ice arrows with the run function effect, but that's only if there's a command to change the damage type of a projectile entity like an arrow, and that still leaves the sword and maybe axe... I just hope for a supported way to achieve something like this with enchantments.