Hi, yes there were changes.
Assuming that you're using asciidoctor-pdf 1.5.x, here is a link to that version's theming guide and default theme:
https://github.com/asciidoctor/asciidoctor-pdf/blob/v1.5.x/docs/theming-guide.adochttps://github.com/asciidoctor/asciidoctor-pdf/blob/v1.5.x/data/themes/default-theme.ymlThe changes were made as part of
https://github.com/asciidoctor/asciidoctor-pdf/issues/449.
It was included in version 1.5.0 Alpha 13 released on 19 Sep 2016.
It would have been helpful to add the link to the doctoolchain issue. Here it is:
https://github.com/docToolchain/docToolchain/issues/568There was a mapping of old content that was removed in version v1.5.0.beta.1