aquamarine:
  Depends: kdelibs4c2a (>=4:3.5.5-1) but 4:3.5.2-0ubuntu18.4 is to be installed
 Depends: kwin but it is not going to be installed
 Depends: libberyldecoration0 but it is not going to be installed
 Depends: libberylsettings0 but it is not going to be installed
  Depends: libc6 (>=2.3.6-6) but 2.3.6-0ubuntu20.4 is to be installed
  Depends: libfontconfig1 (>=2.4.0) but 2.3.2-1.1ubuntu12 is to be installed
  Depends: libfreetype6 (>=2.2) but 2.1.10-1ubuntu2.4 is to be installed
  Depends: libgcc1 (>=1:4.1.1-12) but 1:4.0.3-1ubuntu5 is to be installed
  Depends: libglib2.0-0 (>=2.12.0) but 2.10.3-0ubuntu1 is to be installed
  Depends: libpng12-0 (>=1.2.13-4) but 1.2.8rel-5ubuntu0.2 is to be installed
  Depends: libqt3-mt (>=3:3.3.7) but 3:3.3.6-1ubuntu6.2 is to be installed
  Depends: libstdc++6 (>=4.1.1-12) but 4.0.3-1ubuntu5 is to be installed
 Depends: libxcomposite1 but it is not going to be installed
  Depends: libxfixes3 (>=1:4.0.1) but 1:3.0.1.2-0ubuntu3 is to be installed
 Depends: beryl-core but it is not going to be installed