A test image of linear gradients covering the whole hue range in svg. Requested to look at what happened to it, because the accuracy lowered much from the original upload. Reducing the number of decimals only resulted in nodes moving, which doesn't help the browsers rendering limitations of too many gradiens used -stored in the defs section.

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This free Icons Png design of spectrum of colours PNG icons has been published by iconspng.com. The original size of the image is 2400 × 961 px and the original resolution is 300 DPI.

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