Hi, I re-added the load/write feature in ChainsawTabbedPane using JSON and Genson: https://github.com/apache/logging-chainsaw/blob/master/src/main/java/org/apache/log4j/chainsaw/components/tabbedpane/ChainsawTabbedPane.java#L126-L191
If it works, I will refactor it further so we can reuse the writing and reading code for other components. I could not test it: writing and reading are not used, and I want to know when this should happen. Is it supposed to read this when we start the application and write it when the tab was changed? Kind regards, Christian