Going to put a bunch of feedback and things I think would be nice improvements or options to have

Entity Inspect element:

1. The font for the entity name: Just use the black/grey text rather than white with a black outline, will improve readability
2. Background of the entity render: this needs to be a lighter colour, or just a colour that fewer mobs blend in with.
3. Add something to indicate armour value on mobs and to indicate type of mob (i.e. undead, arachnid). Currently I'm debating whether to use this or Neat, and these two features are the main things Neat has over this atm.

Item Pickup:

1. This overlaps with the exp bar slightly on hud types where the exp bar goes along the full bottom of the screen (default, hotbar, modern), should probably be moved up a tad when those types are selected

Item/Armour/Arrow/Block/Compass/Clock Details section

1. Can we get a configuration option to change the height of this element? I'm only using the block and arrow info for my pack, but they overlap a bit with where I have HWYLA setup, so it would be nice if I could move them down a bit.

Entity Inspect element (the current version was by no means suppose to be a final product - more like a first version for testing and feedback. so thank you for your feedback!):

1. I'll try a few things - but yeah. I agree
2. I'll look into it (damn this must sound like I don't even try xD)
3. I will. Also status effects. Just haven't gotten around to it yet.

Item Pickup:

1. The Item Pickup is the thing that's most WIP. Need to figure out a way to make it work on servers as well. Better positioning will go in hand with the main feature of 3.7.

Item/Armour/Arrow/Block/Compass/Clock Details section

1. Free positioning is the main feature for 3.7. However I need to rewrite sectons of everything in order for it to work. And unfortunatly that takes a lot of time. I finished the first part a few hours ago (the new settings system)

Again thank you for your feedback! It's definitly helping and won't be to long 'til you'll see the requested features ingame.
Side note: There might be another 3.6 release before 3.7 that might contain a few new and changed things. Including some of the things you mentioned.

The Item Pickup is the thing that's most WIP.
Better positioning will go in hand with the main feature of 3.7.

If possible, and nobody requested it already, could you add a setting to change it from bottom-right to top-left, like the item pickups notifications in Skyrim / Fallout?

Interesting idea.
Once I get it to work properly I'll try to do that^^