All interface frm-file names are hardcoded.

[FakelsHub]

It is required to change the implementation and be based on the names in .lst files.

falltergeist/src/State/CritterBarter.cpp

Line 44 in cf63003

addUI("background", new UI::Image("art/intrface/barter.frm"));

[667bdrm]

I think that for implementing replacement for hardcoded ui items should be developed something like physicsfs. Currently fallout filesystem is a not ideal for modding: if someone added new items to LST, and the secondary modder added own items to the same positions both mods cannot be used at the same time in the engine. Calling by filesystem path could be solved with physicsfs allows to merge different mods into single virtual filesystem.

[FakelsHub]

Нужна просто другая система регистрации файлов для поддержки модов. Не заменяющая файлы .lst а дополняющаяя основной файл lst. Например таким образом:

<fid>, <filename>
<fid>, <filename>
....