On the other hand a non-zero value say N will make transparent all pixels with RGB values where the R G and B components have values from (255-N) to 255 i.e. #RED FROST FROST SERIES#A threshold value of 0 will make transparent all pixels with RGB values where the R G and B components are all exactly 255 i.e. A Touch of Frost is a television detective series produced by Yorkshire Television (later ITV Studios) for ITV from 6 December 1992 until 5 April 2010, initially based on the Frost novels by R. If your logo does not have this property you can optionally have its background be made transparent provided it is white (or 'near' white) by entering a transparency threshold value.
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