Fixed a few parameters in tests, confirmed all export products look the way they should

tests/test_roiset.py

@@ -274,7 +274,6 @@ class TestRoiSetMultichannelProducts(BaseTestRoiSetMonoProducts, unittest.TestCa
             draw_mask=False,
             draw_bounding_box=True,
             bounding_box_channel=1,
-            # mask_channel=0,
             rgb_overlay_weights=(0.1, 1.0, 1.0),
             expanded=True,
             pad_to=256,