Mastery 19 Test visibility

[houselyrander]

Visibility is always bad for Mastery Tests because of the plethora of visual effects that, as far as I can tell, can't be turned off (which I'd count as a bug in of itself), but Mastery 19 seems especially bad. I feel like I have glaucoma and the unforgiving nature of stealth based test with the new stealth AI only exacerbates this. I found a work around by using Ivara and Enemy Radar since the minimap isn't an over exposed haze of white, but it's still not something I feel should be necessary.