Registered: Oct 1999
Location:
Posts: 110

Thanks to those who recommended Khroma over Chrome to adjust colors on my Prism. It took a bit to figure out, but it really does seem better (and it's free!)

But . . . it appears to have suddenly killed the color on my Prism. It was working fine, although I noticed a strange thing with AvantGo yesterday - it was using the color scheme I set up in Khroma at first, but then it when I exited and reentered AvantGo, the color was gone - only black and white menus. Today the same thing happened for my Prism as a whole - only black and white menus, buttons, etc. The icons are still in color, as are pix in Avantgo. Only the "system" seems to have been reset to black and white. Reloading the system default scheme within Khroma worked okay - but only within Khroma. For all my other programs, I am now stuck with black and white. Deleting Khroma from my Prism didn't change anything, and neither did soft resets. Am I SOL? Help!

Registered: Sep 1999
Location: Tucson, AZ, USA
Posts: 13

I had the same problem. It went away when I switched the color depth back to 8-bit.

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Dan

Registered: Oct 1999
Location:
Posts: 110

Yep, that did the trick. Thanks much! (Is VisorCentral great or what?)

Registered: Jan 2001
Location: Northern Virginia, U.S.A.
Posts: 36

conflict with image programs

I installed Khroma, and I like what it can do. But when I viewed a movie in TealMovie, or photos in the Handspring Photo album, it really messed up the pictures (unrecognizable images, especially in the movies). Haven't tried changing the settings to 8 bit, but it would be disappointing to have to give up the potential for 16 bit color.

Anything else I should try? Thanks for any help!

Registered: Feb 2001
Location: Colorado Springs
Posts: 9

URL for Khroma?

What's Khroma? Is it ChromaCast, or something else? Please post the URL; I've tried to find it without success. Thanks!

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Barry Fagin
Professor of Computer Science
US Air Force Academy
(any opinions expressed above are mine alone)

Registered: Feb 2001
Location: Colorado Springs
Posts: 9

Just found it, here it is:

http://www.handango.com/PlatformPro...9&catalog=1

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Barry Fagin
Professor of Computer Science
US Air Force Academy
(any opinions expressed above are mine alone)

Registered: Dec 2000
Location:
Posts: 60

Um
I hate to sound stupid
But
When you speak about changing the color depth,
Is this from Khroma?
From the Visor Preferences?
How are you doing this?

I've looked high and low, and the only color depth setting I ever found (besides that in MegaLauncher II) for the OS was in Chroma.

Sorry to sound dumb, but I can't find it.

Registered: Mar 2001
Location:
Posts: 10

To set the screen depth to 8 bits (256 colors), open Khroma, open the menu, open system, and open "Set screen depth".

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Bob

Registered: Dec 2000
Location:
Posts: 60

D'oh! No wonder I couldn't find it. I must've been using an older version... -- it didn't have that option.

Checked, couldn't find the menu. Followed the link kindly provided by Barry above, installed, I have screen depth option! Woo hoo!

Oh, and the Prism can support 16 bit color, can't it? Is there any reason to set it lower?

Thanks.

Registered: Oct 1999
Location:
Posts: 110

Apparently the only reason to set it lower is the problem that odevans and I ran into. On the other hand, I'm not missing anything now that I'm using only 256 colors. There are a lot less than 256 different colorable objects in the Palm OS.

Registered: Oct 2000
Location: Aberdeen, SD
Posts: 2531

quote:

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Originally posted by CaptainCaveman
...Oh, and the Prism can support 16 bit color, can't it? Is there any reason to set it lower?...

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-Joshua
Abortion: Darwinism at its finest.

Registered: Dec 2000
Location:
Posts: 60

WHA? So I have a 16 bit color screen that can only display 256 colors? Uhm. I hate to sound stupid (again) but is there an idiot's explanation for that? I was under the (apparently wrong) impression that, well,... 16-bit display meant, uhm... 16-bit display?
Thanks.

Registered: Nov 2000
Location:
Posts: 714

He is simply saying that because the Prism's screen is only 160x160 that you can't display EVERY single color possible at one time. Search the forum for an argument over this, no matter what though - 16-bit is 16-bit and it can make a huge difference no matter the resolution.

The reason people are setting the display to 8-bit is because I presume khroma was not written to support 16-bit and is therefore causing trouble with it. Since Palm has yet to release their 16-bit Palm many developers are choosing to ignore us Prism users.

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Matt Nichols
[email protected]

Registered: Oct 1999
Location:
Posts: 110

This, I think, is a reference to the fact that no PDA can display 65,000 colors AT THE SAME TIME, for the simple reason that there aren't 65,000 pixels on the screen. This stems out of a passing reference to this in a review of the Prism on another site - PDABuzz maybe? I think that it's a rather meaningless statistic. If you're viewing an image that's mostly shades of one color, for instance, you'll see a HUGE improvement with 65k colors. But there it is. As for Khroma, I doubt many of us will miss 65k colors for the reason I mentioned - but then again, maybe some clever folks among us have come up with cool schemes all revolving around hyperintelligent shades of the color blue!

Registered: Oct 1999
Location:
Posts: 110

MattN - Khroma will actually support 16 bit color (tap System-Set Screen Depth), it's just that at least for odevans and me, it didn't seem to support it very well!

Registered: Dec 2000
Location:
Posts: 60

Ahh, I got ya now. It can't display 65k colors at once because it can't display 65k pixels at once.

I was thrown, thinking that it couldn't display 65k colors at once meant something like it didn't have the full 65k palet... pallet... color scheme available at once.

(-sigh- made me think of the old days, when they would do things like show more than 8 sprites at once by swapping them back and forth very quickly )

Registered: Nov 2000
Location: New York City
Posts: 76

Once you've set your color scheme, it will survive just about anything, including a hard reset. So, if you don't expect to change the screen colors, is there any reason you can't delete the app? I'd like to save the space.

Registered: Oct 2000
Location: Aberdeen, SD
Posts: 2531

quote:

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Originally posted by Matthew Nichols
He is simply saying that because the Prism's screen is only 160x160 that you can't display EVERY single color possible at one time. Search the forum for an argument over this, no matter what though - 16-bit is 16-bit and it can make a huge difference no matter the resolution.

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-Joshua
Abortion: Darwinism at its finest.