Some Detailed Info on my problem:
Yesterday I restored by Playstation 3 system some time after noon (maybe at about 14:00-16:00) So I got the default settings on it. Previously my settings were determined by the previous owner so it might have been different. After I set up everything on the newly formatted HDD, I chose my theme colour to the elctric blue. I played to about 23:00 and when I went to shut down the system everything was still blue. Today I started at about 13:00 and it was still blue. At about 16:00 I shut down the system and came back at around 19:00 to play again. This time the when the ps3 logo came it wasn't simply the normal light purple, but it was black. I checked and found the setting to be default on both user accounts. I checked out on google for why it was so dark and apparently it is manipulated by the time of the clock.
My question is: how did it change to default colour when it was off?
I had accidentally set the date 2 days late, now it says 26th of December...could it be because of the end of christmas?
I doubt the a date change on the calendar would start changing PS3 settings.
Also, today's the 29th. You may want to try setting the date and time again.