fix #10 with the addition of a `transparency` option#30

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chrisdeely wants to merge 2 commits intogemini-testing:masterfrom chrisdeely:transparent-diff

+55-10

Commits on Jan 23, 2023

fix gemini-testing#10 with the addition of a transparency option to control the alpha of unchanged pixels
chrisdeely
committed

Commits on Jan 27, 2023

implement matchingPixelAlpha option
chrisdeely
committed