itch.io

In the settings panel there are dither options, Haltone dots, halftone lines, Bayer 4x4 and blue noise.
I could add the other Bayer matrixes as options. - watch this space

Just added a screenshot that demonstrates the multicolor gradients in Indexed mode

I now see that you mean more than two actual colors, not steps between, and the answer is still yes in Indexed mode but I don't yet have a video demoing that. I'll make one soon.

Here's a short video that demonstrated the RGB mode version

Yes absolutely. In Indexed mode the gradient is the colors linearly through the palette between the foreground and background colors. If that's 5 palette entries that's 5 colors in your gradient, if it's 32 colors then that. In RGB mode a gradient is built algorithmicaly between  your foreground and background color and there's a slider to adjust how many steps you want, so if you want two colors you can have that and if you want 32 colors between then you can have that.
Hope that makes sense.

Whoops! We've been spoilt by the way Steam handles support files - the first uploaded version of Crazy Castle was missing a bunch of dlls - the current version adds them back in. Hopefully we haven't left any out this time!