Additional to the Posting from Bjorn_M at Nov '17
Sorry for my germenglish 
Some more ideas for the inventory:
- Numbers as an overlaygrafic over the pictures with the values from the item.For example [25] in the low right corner für an level 25 hat. its very tricky to compare two items and not switch them.
- color the number for rarity, tradeability, type etc.
- when an item is for a special class, use a small icon for the class oder color the frame
- new buttons for the classes at the left side. When you click the button you will equipp the last used amor, weapon, orbs/bow&arrow,…
btw: When i am equipped with amor from the warrior and will fight with the musket. will there be the same protection? can i use the shirt [110] from musketeer as an warrior because my warrior shirt is only [70]?
- its not obviously in the left area which field is the shirt/shoulder etc…
- you only use the trigger button in the menu. perhaps there are some other options to select more items i a row, recsale with a zoom, use both controllertrigger at the same time, etc.
- show the durability from the item in the picture. for hat, etc an for example for the fisher hook.
- Why is the book so high? i got neckproblems. Nobody reads in an 90° angle
Just my two cent