Happens 
New: accepted ubuntu-mate-artwork [source] (vivid-proposed) [0.4.2ubuntu1]
New: accepted ubuntu-mate-settings [source] (vivid-proposed) [0.4.2ubuntu1]
New binary: ubuntu-mate-settings [amd64] (vivid-proposed/none) [0.4.2ubuntu1] (no packageset)
New: accepted ubuntu-mate-settings [amd64] (vivid-proposed) [0.4.2ubuntu1]
New: rejected grub2-themes-ubuntu-mate [source] (vivid-proposed) [0.3.7ubuntu1]
New: accepted ubuntu-mate-meta [source] (vivid-proposed) [1.120ubuntu1]
New source: grub2-themes-ubuntu-mate (vivid-proposed/primary) [0.3.7]
New binary: ubuntu-mate-meta [i386] (vivid-proposed/none) [1.120ubuntu1] (no packageset)
New binary: ubuntu-mate-meta [amd64] (vivid-proposed/none) [1.120ubuntu1] (no packageset)
New: accepted grub2-themes-ubuntu-mate [source] (vivid-proposed) [0.3.7]
New binary: ubuntu-mate-meta [powerpc] (vivid-proposed/none) [1.120ubuntu1] (no packageset)
New binary: ubuntu-mate-artwork [amd64] (vivid-proposed/universe) [0.4.2ubuntu1] (no packageset)
New binary: ubuntu-mate-meta [armhf] (vivid-proposed/none) [1.120ubuntu1] (no packageset)
New binary: grub2-themes-ubuntu-mate [amd64] (vivid-proposed/none) [0.3.7] (no packageset)
New: accepted grub2-themes-ubuntu-mate [amd64] (vivid-proposed) [0.3.7]
New: accepted ubuntu-mate-artwork [amd64] (vivid-proposed) [0.4.2ubuntu1]
New: accepted ubuntu-mate-meta [armhf] (vivid-proposed) [1.120ubuntu1]
New: accepted ubuntu-mate-meta [powerpc] (vivid-proposed) [1.120ubuntu1]
New: accepted ubuntu-mate-meta [amd64] (vivid-proposed) [1.120ubuntu1]
New: accepted ubuntu-mate-meta [i386] (vivid-proposed) [1.120ubuntu1]
New: accepted yuyo-gtk-theme [source] (vivid-proposed) [0.2ubuntu1]
New binary: yuyo-gtk-theme [amd64] (vivid-proposed/none) [0.2ubuntu1] (no packageset)
New: accepted yuyo-gtk-theme [amd64] (vivid-proposed) [0.2ubuntu1]