In the optimisation panel
see where there's a number, probably 256? Click there, and pick a lower number.
What's really shot you in the foot for making this a smaller pic is all those icons and that flashy wallpaper...
(
JustHere4Coffee remembers when all o' this were car parks,
Mon 7 Apr 2003, 23:07,
archived)
Cheers
Done it, 64 colours - 139K with 10% lossy compression.
Bit better!
(
Sn0tters 🇯🇴🇧🇧🇮🇪,
Mon 7 Apr 2003, 23:17,
archived)