If you mix the aniline dye's with alcohol you have just about the same thing as the bottled leather dye's. Other then walnut hulls, tea and vinegaroon, and Rit I use the bottled leather dye on everything. You can add alcohol to "thin" it down in color and then work up to something darker via more coats. Remember, each dye will work differently from one batch of leather to another.
Here is a lined canvas bag (incomplete in this pic) done with leather dye for everything from the canvas to the trim, strap and horn ties: