Would it be possible to add a css class to jobs in the aggregator view to indicate the previous status of the job, when it is currently building.
At the moment, when we start a stage, large sections of the radiator go to black with the blue progress bar. It would be good if this predominantly remained its previous colour (e.g. red/green), with the progress bar as an overlay. This would help give more indication of the current status and which builds to watch in particular.

The wall display plugin has the same effect - see the first screenshot in https://wiki.jenkins-ci.org/pages/viewpage.action?pageId=57184000 Progress bars are shown as overlays with the main colour taken from the previous build.