Fully agree with the UI suggestion of being able to input exact numbers and furthermore: symbolic math expressions. I would personally use expressions even more

Fully agree with the UI suggestion of being able to input exact numbers and furthermore: symbolic math expressions. I would personally use expressions even more often than exact numbers, and expressions would as a byproduct allow a true 1/3 rather than a rounded 33.33%. I was agreeing with this idea above, did it seem like I was arguing? Sorry about that. The UI inputs are a somewhat separate topic from how much resolution is needed for transparency. I think a thorough investigation of necessary transparency resolution would be really interesting, something along the same lines as how perceptual color spaces have been developed, by examining things like the “just noticeable difference” in transparency values and mapping that across the space of all possible color mixtures and transparency values to get an understanding of how stretchy the space is.