Yes I know that the colours are wrong. Need to post a bug report about that. The palette handling in the trunk has changed from 8bit to 16bit and the optimized ARM version has n't been updated for that change yet. So thats why the colours in Scummv1/2/3 games look wrong.
But I think that game support for SCI works fine, then you have full tinsel support, teenagent, Draci (free game) support etc.
So this one is really worth trying the Scumm thing apart.
King Quest V colors are a bit messed up (maybe you know that actually), noticiable on the house at first scene, on cutscene animation when character go outside is fine but later it turns all pixelated in funny colors.
Btw, w950 must run all sierra games without music or its slow as a 286. Thats a must-live-with fact or related to Arm Asm deactivation? im happy of thiS!; cannot belive i can run them on my phone.
Try changing opl emulation for those SCI games(between dosbox/mame emu), but I think the music might be to complex, or SCI + music just to much for the w950.
Ohh cr*p SDL resolution, or should I say SCI. Not a lot of devices support that non standard resolution. Hmm wonder if its managed in some other backends, the windows SDL can have any windowed resolution, but not really fullscreen. Please check the SCI thread and please post a bug report if you can't find it as an issue in that thread.