Pixly (android program) with the inserting .pal file option (part 1)

 

When you open Pixly, click on right top button (the brown-red and white square)

                                                      Click on the .. (in the lower left)

                                                                       Click "Load"
                                                       .png files are accepted too

                                                                Click "Import a copy"

                                                                       Click "Close"

 If you click "General" on the top left button, you will see different .pal files and by the Pixly author Gustavo Maciel.
When you add the Quake2 pal, it can be renamed the way you wanted.

                                               Now you will see the Quake 2.pal colors