device: 0.728
graphic: 0.633
other: 0.620
network: 0.450
vnc: 0.273
mistranslation: 0.261
boot: 0.172
semantic: 0.079
socket: 0.071
instruction: 0.031
KVM: 0.005
assembly: 0.002

option to take screenshot with screendump as PNG
Additional information:
Libvirt already have preparation for PNG MIME type: https://github.com/libvirt/libvirt/blob/master/tools/virsh-domain.c#L5526


Thanks