Speccy is a Sinclair ZX Spectrum home computer emulator. It will run software written for Spectrum 16k, 48k, 128k, +2, +2A, +3, Timex Sinclair, Pentagon, and Skorpion home computers.

Changes:

* Added ULA+ emulation with 64-color display mode.
* Added “Color Palette” option for changing color palette.
* Added support for custom color palettes for each tape or snapshot.
* If you have Game.z80 or Game.tzx, place colors into Game.pal.
* Added support for global color palette in /Speccy/Speccy.pal.
* Each *.pal file should contain 16 lines with colors in “#RRGGBB” format.
* Made display mode changes more reliable.

https://play.google.com/store/apps/details?id=com.fms.speccy