Please fix the custom colour options so that colours are remembered. I can fill all custom colour boxes with a colour that I want as my background, but it is forgotten a few slides later.

If you were to allow changing the background colour of all slides at the same time, this would be less of an issue.

As it is, I need to go back to the slide that has the desired colour, save it to custom colours, apply it to the next slide, rinse and repeat.