Allow us to lock pieces of wear so you do not accidentally switch. Have a separate lock for each item, or at least a separate lock for Weapons, Armor, Shield and Ornaments.
Change the icon for Darkest make it different. In BT when you are destroying dozens of armor, you sometimes accidental equip Dark armor and remove your Darkest. You cannot tell the difference between Dark, Darker and Darkest and level 70/72 armor by looking at the icon.
Give Darkest armor unique icon. Also give enforced items a "+" sign over the icon.
Again in BT when destroying lots of items you fall into the rhythm of drag and yes, and well after a while you can make a mistake. Enforced Items, Darkest items and Mythic items you should have to type "YES" or something like that when you are destroying or selling these items. A simple yes click or drag an drop item to seller is not good enough. And considering that Icons are the same is even more of a problem.
Most other games you have to type something for destroying/selling important items.
Again, the Darkest Icon should be different. If too lazy, just change the hue or something like that. Just make them different.