Mod homepage is https://minecraft.curseforge.com/projects/survival-recipes.
X#X
XXX
#Y#
X
= leather, Y
= iron ingot
XX#
XY#
XY#
X
= blaze rod, Y
= paper
XXX
XYX
XXX
X
= emerald, Y
= elytra base
XX
X
= elytra part
##Y
#Z#
X##
X
= iron ingot, Y
= string, Z
= leather
- 1 rotten flesh = leather