iBook Clamshell - colour of OS interface

[AlpineRaven]

G'day all,

I have this iBook Clamshell and I did logicboard swap, I had 466mhz board & DVD drive from very brittle/cracked body - into 366mhz unit. The 366mhz unit is Lime iBook and the Logicboard is from Graphite body.

From memory - I knew it'll boot up unique GUI interface to match the body colour ie. Lime iBook will boot with green background interface, blue will be boot into blue... Same what iMacs used to do too.

But this one - it'll boot in Blue instead of Lime....

For some stupid reason I recall there is either firmware coding or software to change the colour in the firmware - what was it?

Thank you
Cheers
AP

 

[finkmac]

firmware? dunno what you mean there.

presumably you're running MacOS 9. the options you want are in the "Appearance" control panel

 

[zefrenchtoon]

@Dandu may have some info as, a long time ago, he wrote a post about this on its blog:

Souci du détail : les fonds d'écran des iMac et iBook G3 - Le journal du lapin

Le journal du lapin, mon espace personnel ou je parle de trucs retro, d'expérimentations et de produits Apple. Et évidemment de prototypes.

www.journaldulapin.com

He says that it is tied to a command named "yum" that sends back the color of the computer.

 

[chelseayr]

why am I not surprised it would be aptly named 'yum' as beside it seem like a lot of the non-white g3's were based on some kind of food name colour-wise

so yeah "yum me some blueberries please" anyone? heh..don't mind me..

 

[joevt]

Get a ROM dump for each logic board. The color is probably stored in NVRAM somewhere.
https://forums.macrumors.com/thread...eige-power-macintosh-g3.2303689/post-33883037

Firmware updaters starting with 3.2.4f1 read a byte at 0xFFF04177 which is at offset 0x177 in nvram.

h# FFF04177 c@  case
1 of blueberry endof
2 of strawberry endof
3 of grape endof
4 of lime  endof
5 of tangerine  endof
6 of silver  endof
grape
endcase

Older firmware updaters (for Macs without config blocks - iMac 233-333 and B&W G3) don't draw using different colors. I don't know if they store a color somewhere in NVRAM.

 

[AlpineRaven]

Get a ROM dump for each logic board. The color is probably stored in NVRAM somewhere.
https://forums.macrumors.com/thread...eige-power-macintosh-g3.2303689/post-33883037

Firmware updaters starting with 3.2.4f1 read a byte at 0xFFF04177 which is at offset 0x177 in nvram.

h# FFF04177 c@  case
1 of blueberry endof
2 of strawberry endof
3 of grape endof
4 of lime  endof
5 of tangerine  endof
6 of silver  endof
grape
endcase

Older firmware updaters (for Macs without config blocks - iMac 233-333 and B&W G3) don't draw using different colors. I don't know if they store a color somewhere in NVRAM.

That must be it - I'll have a look thank you..
Cheers
AP