ColorSequence forces results to be in SRGB color space

[shi-weili]

orx/orx-color/src/main/kotlin/palettes/Palettes.kt

Line 57 in 65ca1ce

}.toSRGB()

Currently, all colors will be converted to SRGB before being returned. However, the default linearity of an RGBa color is UNKNOWN:

https://github.com/openrndr/openrndr/blob/563c1cd36ad4b65399ccfaee7928013ef99289ab/openrndr-color/src/main/kotlin/org/openrndr/color/ColorRGBa.kt#L30

So if the user defines two RGBa colors without specifying linearity, and then blend them, the resulting sequence will have unequal distances, because ColorRGBa.toSRGB() will treat UNKNOWN inputs as if they are LINEAR:

https://github.com/openrndr/openrndr/blob/563c1cd36ad4b65399ccfaee7928013ef99289ab/openrndr-color/src/main/kotlin/org/openrndr/color/ColorRGBa.kt#L228

This is unintuitive. Maybe either make the default linearity of ColorRGBa SRGB (like the predefined colors), or don't force the ColorSequence outputs in SRGB to avoid confusion?