Github user scottyaslan commented on the issue:
https://github.com/apache/nifi/pull/1133
I will have an update to the PR later on today @pvillard31....please do not
merge yet as this PR currently only addresses the zoomed out color of the
processors. The plan is to have all items on the canvas match their birdseye
view colors when sufficiently zoomed out (PG's, ports and filters).
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