Dear All, I've found a mention of Avalon in the 'Using a Configuration File' section: https://xmlgraphics.apache.org/fop/trunk/embedding.html#config-internal
On compliance page https://xmlgraphics.apache.org/fop/compliance.html we can make green: §6.13.2 change-bar-begin §6.13.3 change-bar-end §7.30.1 change-bar-class §7.30.2 change-bar-color §7.30.3 change-bar-offset §7.30.4 change-bar-placement §7.30.5 change-bar-style §7.30.6 change-bar-width Jan
