When you create a filter for matrix job configurations, the configurations are filtered correctly for execution. However, in the interface, if you have 100 configurations and only 13 are active, you see a huge table with 13 green/yellow/red balls, and 87 ugly gray balls.

This is very confusing and distracting for a new user - plus hard to see - and it would be better to just hide the gray balls for the inactive configurations, those filtered out.

Oh, and worse - the gray ball has an overloaded meaning. If you abort the build, or it times out - all the balls become gray. You don't even know where to look anymore

See the attached image for details.