[servo]

Is there a way to change the default blue color OSX uses when booting and shutting down? I know how to change the image used but I would like to change the solid blue color also.

[zachs]

Originally posted by servo:
Is there a way to change the default blue color OSX uses when booting and shutting down? I know how to change the image used but I would like to change the solid blue color also.

Nope, I don't believe it's possible to do that. I wish there was a way, though.

[Synotic]

Originally posted by zachs:
Nope, I don't believe it's possible to do that. I wish there was a way, though.

I bet it's somewhere in the bootx file or something

[themarvelous3]

oh yeah...how Do you change the IMAGE?

[servo]

Originally posted by themarvelous3:
oh yeah...how Do you change the IMAGE?

Replace /Library/Desktop Pictures/Aqua Blue.jpg with your image of choice.

[eatinwokout]

Originally posted by servo:
Replace /Library/Desktop Pictures/Aqua Blue.jpg with your image of choice.

Do you mean rename the image that you want to show as Aqua Blue.jpg?

[servo]

Originally posted by eatinwokout:
Do you mean rename the image that you want to show as Aqua Blue.jpg?

Yup. Though I am curious where this is defined. There has to be a configuration file somewhere that defines this.

[smeger]

I seem to recall seeing this color hard-coded into BootX. BootX is available via the Darwin project, so conceivably, if you were ballsy and knowledgeably, you could change it and replace BootX with your hacked version.

[servo]

Originally posted by smeger:
I seem to recall seeing this color hard-coded into BootX. BootX is available via the Darwin project, so conceivably, if you were ballsy and knowledgeably, you could change it and replace BootX with your hacked version.

I'm not convinced this is part of BootX. The color appears as the GUI is starting and the GUI is not Open Source. It could still be hard coded somewhere, but it does seem to me that it would not be in BootX.

The search continues....

[Chris O'Brien]

Amit Singh talks about BootX and what it does over at kernelthread.com in this article: http://www.kernelthread.com/mac/osx/arch_boot.html

Apparently, BootX draws the Apple Logo etc, so i imagine it does do the colour. Anyhoo - read the page I linked to (I read it months ago and can't really remember...), but it might be a variable stored somewhere in OpenFirmware...

[servo]

I was just poking around and found the following:

Code:
/*
 *
 * Most fade operations done by apps and games are done around display
 * configuration changes.  This API adds control over a built-in fade
 * effect when performing display configuration changes.
 *
 * The default fade effect on a display mode change uses a fade-out of
 * 0.3 seconds and a fade-in of 0.5 seconds.  Color fades to French Blue
 * for a normal desktop, and black when displays are captured.
 *
 * CGConfigureDisplayFadeEffect sets the display fade time and color
 * for a display reconfigure operation.
 * Call after CGBeginDisplayConfiguration() and before
 * calling CGCompleteDisplayConfiguration().
 *
 * When CGCompleteDisplayConfiguration() is called, a fade-out effect will be
 * done prior to the display reconfiguration.  When the display reconfiguration
 * is complete, control returns to the calling program, while a fade-in effect
 * runs asynchronously.
 */
CGError CGConfigureDisplayFadeEffect(CGDisplayConfigRef configRef,
                                     CGDisplayFadeInterval fadeOutSeconds,
                                     CGDisplayFadeInterval fadeInSeconds,
                                     float fadeRed,
                                     float fadeGreen,
                                     float fadeBlue);

Found in /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/CGDisplayFade.h

I haven't poked arounf enough to make sense of it, this just seems interesting.

[Synotic]

Originally posted by servo:
I was just poking around and found the following:

Code:
/*
 *
 * Most fade operations done by apps and games are done around display
 * configuration changes.  This API adds control over a built-in fade
 * effect when performing display configuration changes.
 *
 * The default fade effect on a display mode change uses a fade-out of
 * 0.3 seconds and a fade-in of 0.5 seconds.  Color fades to French Blue
 * for a normal desktop, and black when displays are captured.
 *
 * CGConfigureDisplayFadeEffect sets the display fade time and color
 * for a display reconfigure operation.
 * Call after CGBeginDisplayConfiguration() and before
 * calling CGCompleteDisplayConfiguration().
 *
 * When CGCompleteDisplayConfiguration() is called, a fade-out effect will be
 * done prior to the display reconfiguration.  When the display reconfiguration
 * is complete, control returns to the calling program, while a fade-in effect
 * runs asynchronously.
 */
CGError CGConfigureDisplayFadeEffect(CGDisplayConfigRef configRef,
                                     CGDisplayFadeInterval fadeOutSeconds,
                                     CGDisplayFadeInterval fadeInSeconds,
                                     float fadeRed,
                                     float fadeGreen,
                                     float fadeBlue);

Found in /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/CGDisplayFade.h

I haven't poked arounf enough to make sense of it, this just seems interesting.

Good find.. but umm.. is there any reason I wouldn't have that file? I'm in the folder but I don't see it... I don't know why you'd just have the source files in the default installation.

[Chris O'Brien]

That might be because it's in headers rather than resources.

[servo]

Originally posted by Black Book:
That might be because it's in headers rather than resources.

Oops. pasted the wrong path.

[smeger]

Servo, that header is for use when changing the full-screen display from one thing to another. It does a quick fade in/out. One example is when doing a fast-user switch.

It's a cool API call, but nothing to do with the login color.

[Holigen]

I seem to remember a program called Visage that could change certain login resources. I think that the same people who make those card games make it. Google it and you may find what youre looking for.

[servo]

Originally posted by smeger:
Servo, that header is for use when changing the full-screen display from one thing to another. It does a quick fade in/out. One example is when doing a fast-user switch.

It's a cool API call, but nothing to do with the login color.

Yeah, I just thought it was interesting. I was hoping maybe it would spur someone to look deeper and find the answer.

[Dace]

You could cheat and make a boot panel the size of your resolution and thus cover the blue background...that's the only way i know of :/

[bentoon]

btw : Visage was great for Jaguar !! :
http://www.stanford.edu/~keaka/products.htm
But there is no update for Panther although it says that it was expected , like 6 months ago
oh Well

[asdasd]

well there was a hint in that Header File. It said that the screen would fade to French blue - the name given to that background color at boot. This is handled by the window server. It is the backfill it shows when there is nothing else to show. You could probably see it when logged in if you renamed the Dock and killed it ( the Dock normally shows the desktop picture when logged in)