## Overview Value Stream Management diagrams sometimes depict work flowing through a value stream in a binary state: it's either being worked on actively by a responsible stage (e.g. actively developed), or it's sitting idle in some way waiting for the next stage (e.g. waiting on a code reviewer to become available). We should depict this in GitLab. ## Proposal * Allow a group to define issue labels into "Idle" and "Process time" segments. * Measure the amount of time that issues spend in each segment, respectively. * Provide a stacked bar visualization (possibly a waterfall bar chart) over time. * Highlight which areas have increased/decreased over time.  cc @gweaver