This file is indexed.

/var/lib/pcp/config/pmchart/CPU is in pcp-gui 3.10.8build1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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#kmchart
version 1

chart title "CPU Utilization [%h]" style utilization
	plot legend "User" color #2d2de2 metric kernel.all.cpu.user
	plot legend "Kernel" color #e71717 metric kernel.all.cpu.sys
	optional-plot legend "Nice" color #c2f3c2 metric kernel.all.cpu.nice
	optional-plot legend "Intr" color #cdcd00 metric kernel.all.cpu.intr
	optional-plot legend "Wait" color #00cdcd metric kernel.all.cpu.wait.total
	optional-plot legend "Steal" color #fba2f5 metric kernel.all.cpu.steal
	plot legend "Idle" color #16d816 metric kernel.all.cpu.idle