Idea for WLED that I I looking for, maybe someone also too:
Have a selection of effects
selection of colourschemes,
Range of speed, and the other slider.
Timer input and order range setting of the timer
Output WLED on above settings:
Cycle trough all selected values combining them randomly within the boundaries set for each line above, for the length as stated in the timer or range of timer.
I do not know if this is something anybody else “misses” and if it can be implemented anyway.