Make every item-model color textures marked with tintindex

We, as resourcepack creators, we would like to be able to add colored models/items for other items than leather armor as well. What I mean, is that whenever there is a texture marked with tintindex, use the Color tag to color it:

{display:{Color:16711680}}

Exactly like the leather armor, except the default color would be 16777215 (white). This would add the ability to create colored food items, for example!