Latest version of net.sf.proguard:proguard-gui
https://javadoc.io/doc/net.sf.proguard/proguard-gui
Current version 5.1
https://javadoc.io/doc/net.sf.proguard/proguard-gui/5.1
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/net.sf.proguard/proguard-gui/5.1/package-list