Hi! It's me again! I finally have a lot more free time, so I can write these long feedback posts again!
I want to start from the fact I really like the fact that you've added custom UI for Weapon Augments, Block's Leveling and Heroic Weapons (I'll say more about the last one later)!
However, I wish there were buttons to easily close the UIs. Right now it's a little annoying. Also, I think that the crafting stations that let you access these UIs should show their sprites when you hover over them (like doors do) to better indicate that they have a right click functionality.
Lastly, it would be awesome if the Augment UI only showed the maximum number of augments that could be available on a weapon with the current config options. Having four extra "N/A" slots feels not very... polished. I get that it's for the cases when you have the items that already have more augments (for example, the player decided to change tge config settings at some point during the playthough), but maybe you could come up with a solution. The UI is still good even now. Also, I think that "Augmentation Workstation" sounds a bit better)
Now it's time for me to talk about Heroic Weapons. It's a really cool idea! The items are very fun to use. I wish more of the planned weapons would be implemented one day (the Chronocutter seems very interesting). I have found a small bug though. The text in the Arsenal Altar that states that the player should put a compatible weapon in the slot only mentions the Sticky Blaster and the Jade Edge.
Also, could you make Biome Crystal support the backwoods biome from Rise of Ages?
Finally, the Aether Well allows you to craft the Quintessence Clicker (from the Clicker Class mod if it wasn't obvious, haha) before the Moon Lord has been defeated, which is not intended. I understand that situations like this one require you to manually add support for items. Also, Rise of Ages mod has a new biome chest, so it would be nice if you added another "biome chest to biome key" recipe as well.
Also, would be cool if the Aether Well was obtainable by transmuting a Savanna Water Fountain (from Spirit Reforged) or a Backwoods Water Fountain (from Rise of Ages) as well (pun intended).
The Eternal Guidelight item is also pretty cool. The option to make it affect Life Crystal and Life Fruit glow is also very appreciated. I think it shoukd be enabled by default because it gives a bigger sense of progression though. By the way, it would be cool if its tooltip indicated that it makes some tiles glow if the option is enabled.