PDF supports many different blend modes, not just the most common averaging method, and the rules for compositing many overlapping objects allow choices ( such as whether a group of objects are blended before being blended with the background, or whether each object in turn is blended into the background ).
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The seats in each constituency are apportioned according to the largest average method of proportional representation ( PR ), conceived by the Belgian mathematician Victor d'Hondt in 1899 . Although there is no statutory threshold for participation in the allocation of Assembly seats, the application of the d'Hondt method introduces a " de facto " threshold at the constituency level.
