Okay, I've got what does the number 12 icon and the 28 icon!
12. Add palette rotation to certain areas.
Options. No, Red Palette. Color Palette.
This function causes the areas designated with the color 128 0 0 (a dark maroon color) to rotate in either a red pulsating style or a colorful rainbow palette. This is useful to make animated colorful billboards or danger areas without using your animated layers.
Number 12 indeed needs a 8-bit fpg. And to make a proper 8-bit palette, let's follow the next steps.
1) Create a fpg at 16-bit.
2) Add your layers as normally, save.
3) Extract your layers in .bmp file type and make sure the area you need pulsating has this range color.
4) After testing and/or putting the areas with this RGB 128 0 0 scheme, SAVE your .bmp (tip using photoshop: save it with the SAVE option, not with the SAVE AS, this is obviously if you didn't add extra layers or alter you .bmp file but only in the color).
5) DELETE the layers inside your fpg and substitute them with the .bmp files you just modified. Save.
6) Then convert your fpg into 8-bit. Top menu. FPG > convertir a.../convert into... > FPG 8 bits (blahblahblah). Save and test.
If everything goes well, the areas you colored as 128 0 0 will be pulsating in a gamma of red and black with the Red Palette tab on or in oscillating rainbow colors with the Color Palette one.
If not, then go back to step 3 (skip 6, your fpg should be already on 8 bits) and try again, extract your layers and see if your .bmp files are not corrupted, remember, must be .bmp at 16 bit color.
The 28 goes next. and it's a big explanation too.










