Probably a redundant question but my searching isnt turning up results that are recent by any stretch of the imagination (in my experience, posts from 2011 are kinda sorta useless these days).
I'm currently using the Grace and Fortune resource pack, and it's amazing, some of my favorite block textures Ive ever seen... but its incomplete, some texture remaining unchanged from default, which is REALLY distracting at times.
My other favorite resource pack is Chromahills, and Id like to use the textures from that pack for the textures that G&F doesnt change. Is there a way to do that without unpacking both texture packs and repacking them into one pack? If not, I would greatly appreciate a guide for how to do that which works with current texture packs and minecraft 1.12.2