I have a few requests, so I'll break them down into sections.
Feature request: Arithmetic operations in number input fields.
As a QoL update, I'd like to be able to do addition and subtraction in number input fields, like in the vendor, crafting and especially Trading Post windows.
In the scenario where I'm crafting expensive items, like Gift of Dust, and I'm short of lots of materials, let's say 32/250 Incandescent, 41/50 Luminous, and 38/50 Radiant Dust, it would be much simpler to get the required amount from the Trading Post if I could write [250-32] as the amount, and it would give me 218.
Of course, computers and phones do have calculators, but I wish I could do this operation directly inside the game. Especially when I need to calculate the amounts for 32 different materials for the Gift of Condensed Might/Magic.
Feature request: Skin and mount preview with selectable dyes
I wish the game had a skin preview window where I could freely choose to color the channels with all possible dyes, like in the Hero panel.
Sure, it is possible to enter dyes into the preview window by going to the Trading Post and previewing the dye, but it's clunky and annoying. And currently there's no way of previewing custom dyes on mounts, so you never know what a mount skin will actually look like with the dyes you want to use before you buy the skin.