Glow with zero level creates artifacts around its node on Linux: it is visible around node border. It should not be, because its level is zero.

Code:
Glow gl = GlowBuilder.create().level(0).build();

Check attached image for details (look for 1px gap between border and text on "Level_0.0" part of the image).

Affected tests:
SceneGraphAutomated/test/scenegraph/functional/Effects2Test/Glow0