Hi! I’m the developer of drawnandquarantined.com, a site that gives daily prompts, and you have up to an hour to paint them.
It comes with a paintbrush tool and an interesting way of blending colours. There’s a restricted palette, but you can blend up to three colours at a time, which makes for a painterly look while staying within a consistent colour harmony. There’s a “gradual eyedropper” tool, like with Krita, but the chosen colour is always a blend from the palette.
I’d love to hear what you think about it!