libmate-desktop-dev 1.26.2-1 (s390x binary) in ubuntu mantic

 The MATE component mate-desktop contains the libmate-desktop library, the
 mate-about program, as well as some desktop-wide documents.
 .
 The libmate-desktop library provides an API shared by several applications
 on the desktop, but that cannot live in the platform for various
 reasons.
 .
 This package contains the mate-desktop development files.