Hi,
Many thanks for your feedback.
I am using this image:
https://www.dropbox.com/s/o10yylc4i7lp3un/cover.png?dl=0With this directive:
:front-cover-image: image:cover.png[width=1050,height=1600,fit=cover]
It does not seems to work in latest version (but renders fines in '1.5.0.alpha.16', event without fit=cover).
I hope this helps,
-- Mickaël