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Tests that contain the draft-watermark are under development and may be incorrectly testing a feature.
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The rendered picture should match the reference image exactly, except for possible variations in the labelling text (per CSS2 rules).
Test which verifies the basic facilities of feComponentTransfer.
This test uses the following elements : a nested <svg> with a viewBox attribute, <linearGradient>, <filter>, <feComponentTransfer>.
The test case shows four rectangles filled with a gradient showing the effects of feComponentTransfer: an identity function acting as a reference, use of the feComponentTransfer table option, use of the feComponentTransfer linear option, and use of the feComponentTransfer gamma option.
The test is somewhat self-explanatory as the strings document the type of feComponentTransfer operation that is being used.