Custom block scripts to convert HSV to RGB and RGB to HSV. - The variables named "return" store the calculation results. - All channels are in the range 0.0 to 1.0. Inputs are unclamped so may produce strange results if given out-of-range numbers or values that aren't numbers. - Optimized to run fast on vanilla Scratch. It outperforms other projects I've tested. As a bonus, it's only 200 blocks and only has two extra variables to store intermediate values.
