You can create an additional res-folder.
For example in the projectdir (the folder where the objects folder is.
Create a folder "resources". Inside it you create the folders you need (like in objects/res).
You reference this folder using
#additionalres: ..\resources
inside your projects main activity.
Files in the folder resources (and subfolders) does not need to be READONLY (they are not removed while compiling)
I dont know it it works for the Icons you created but it is worth a try. I expect it to work.