def test_blending(): """Test setting layer blending.""" np.random.seed(0) data = np.random.randint(20, size=(10, 15)) layer = Labels(data) assert layer.blending == 'translucent' layer.blending = 'additive' assert layer.blending == 'additive' layer = Labels(data, blending='additive') assert layer.blending == 'additive' layer.blending = 'opaque' assert layer.blending == 'opaque'