At least partially...
Inventory: Add tooltips => were implemented
Game view: Add tooltips => were implemented
Dialog panel: Fix the colors => haven't noticed something weird so far (see attached screenshot)
Top menu: Implement the diary button => button is there, but opens the normal ResidualVM ingame menu
Top menu: Implement the tooltips => were implemented
Top menu: Play the animations / scripted display => icons aren't animated
Overall: Complete font support => hard to say, so far I could read everything
Main menu => not accessible
Options screen => not accessible
Save / Load screen => you can enter the ResidualVM ingame menu from the options icon and save/load there
Book of secrets => you can't access the book of secrets, but it's not necessary to complete the game (more of a bonus) or is it?
Diary screens => you can't access the diary, but it's not necessary to complete the game, or is it?
Shadows => still missing
Walk collisions => so far I wasn't able to walk through other objects, at least a walkmesh is present
Skeletal animation blending => still missing, animations sometimes change abruptly
Complete BIFF meshes support (textures, lighting) => I don't have enough knowledge to judge this