By default status for components is empty and if there is issues in components, then there is status text after component. It would be nice to have "Operational" text displayed when everything is ok with all it's components.

On code

// By default, all is good but we change this value
// for progressively worse statuses
var highestLevelStatus = '';

It would be nice to have it default to 'ok'

var highestLevelStatus = 'ok';

Then categories that have all components in ok state would have Operational text even when they are closed.