dex2jar only includes class files in the converted jar

I have this apk: tachiyomi-zh.copymanga-v1.3.48.zip

The contents are:

$ unzip tachiyomi-zh.copymanga-v1.3.48.apk 
Archive:  tachiyomi-zh.copymanga-v1.3.48.apk
  inflating: META-INF/com/android/build/gradle/app-metadata.properties  
  inflating: classes.dex             
  inflating: kotlin-tooling-metadata.json  
  inflating: simp.txt                
  inflating: simplified.txt          
  inflating: AndroidManifest.xml     
 extracting: res/CG.png              
 extracting: res/D2.png              
 extracting: res/SD.png              
 extracting: res/jy.png              
 extracting: res/u3.png              
 extracting: resources.arsc          
  inflating: META-INF/CERT.SF        
  inflating: META-INF/CERT.RSA       
  inflating: META-INF/MANIFEST.MF

Part of the code inside the apk is using this library: https://github.com/luhuiguo/chinese-utils/blob/master/src/main/java/com/luhuiguo/chinese/Converter.java#L49 and the stacktrace is available at https://github.com/Suwayomi/Tachidesk-Server/issues/512#issue-1610060514

That library requires to load resource file /simp.txt or /simplified.txt but these are not included in the converted jar.

We are converting dex2jar via this function: https://github.com/Suwayomi/Tachidesk-Server/blob/master/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/PackageTools.kt#L53

Is there something we can do to make dex2jar include non-class files as well?

ThexXTURBOXx / dex2jar

dex2jar only includes class files in the converted jar #31