Describe the solution you'd like
Replace the Iggy .swf files that are used to render the GUI with Dear ImGUI GUI.
Is your suggestion related to a problem?
Running the game on non-Windows platforms with Wine can cause glitches with GUI. It also will be easier to mod the GUI. This is also preferred as Flash has been discontinued since 2020.
Additional context
Dear ImGUI is recommended as it is customisable and more cross-platform, but other GUI libraries can be used.