This one looks good with a black PSP.
It gets rid of the white from the screen completely,
so you see the grey PSP logo against a black screen when launching anything from the game menu.
Anyone using plain black backgrounds will think this looks great.
I am going to use it permanently.
I have tested it with both firmware launcher, and written it to flash0 with X-Flash.
Instructions for use with X-Flash Final:
Replace the zero byte gameboot.pmf file in Xflash/Modified/gameboot.pmf with
the one in this zip file. Then to apply it to your 1.50 PSP, Start X-Flash,
select menu option 8, press Triangle. If you don't like it, you can reverse it by
pressing Cross in menu option 8.