Im looking for a tutorial/howto about how to customize the fonts, style and position of grub splashscreen titles and messages.
anyone have suggestions?

What about grub documentation ?

A simple google.es/linux search finds it

the howto deals with installing and making grub work, not how to customize the look of the boot message, fonts style and position on the screen.

You are right, but that does not saves you to look for it in the web yourself. At least you could realized that there is a "color" command.

Here is a copy of the grub howto

I have already googled and read the grub howto and several others.
if I had found the answer online already i wouldnt be posting here.
the question is not about simply changing the color of the fonts, it is about how to highly customize the overall look of the messages in the grub splashscreen in order to match them with a custom background image as you can see in many distros.

I have readed again my post and I am sorry because my attitude looks rude.

Well... the second link xplains how to make the image, and how to config grub. All the problem comes because you can't change the font nor the position. Then I was requesting you to make something imposible.

"Mens sana, ergo corpore sano. Linux mensa, karmae levitare"

I know this may seem silly but are there any GUI utilities to make simple changes to GRUB such as password protecting GRUB itself and/or password protecting a boot option? Say I had Linux and Windows on my system and let others freely boot into Windows but Linux boot required a password.
A GUI that allowed a SU to increase the default timeout from the default three second blink of an eye to something more more reasonable such as 15 or 30 seconds?

Better yet a box to check that would require the root password be entered before any GRUB Menu would be shown at all. Enter it incorrectly three times and the PC would power off. Just like most BIOS password routines do.

I just want to make my Linux box more secure from unauthorized access.

A CMOS BIOS Password
A General GRUB Password
A GRUB Boot selection Password
A Operating System Password sign-in for WinDoze and/or Linux.

In Ubuntu there's a utility called "StartUp-Manager" that you can download from the repositories that does just that. It's basically a graphical configuration tool for GRUB. I'm not sure if this is available for other distros, but you can certainly have a look.