background picture for workbench3.1

[Hodgkinson]

I've made my own background for my OS3.0 A1200 and i've found a few useful bits of information out in the process.

Whilst my backdrop is designed to use as little resource as possible, you might want to look at my photos (I have written up the information I found as images).

Hodgkinson.

[Hodgkinson]

When you make a IFF image, check the colour depth of the image. Less colours = Faster loading and smaller file size... And these colours can be made to match those supported by a low colour WB by using some special modes in Paint Shop Pro 6.

Also, dont make the image any larger than what you can see on the screen. It'll just mean your system has to load more image for no reason.
I did some tests on this and found that, say you've set 640x480, then the title bar shifts the image by 11 pixels downwards, cutting off the bottom 11 pixels of the image, so the image should be 640x469 for optimium performance.

Hope this is of some use... (I figured you might be doing some image editing at some stage...)

Hodgkinson.

[Hodgkinson]

I thought the image had to be exactly the same size as the desktop?

Not that im aware of. I've had a 640x480 background image for a long time on my WB3.0 system before realising, with a new 640x480 background image, that the bottom 11 pixels of the image aren’t visible.

Apart from that i've noticed no difference what so ever.

Its quite likely that the "Number of displaced pixels" will vary from system to system depending upon the default system font, as used in the title bar.
I’m not saying that im an expert with background images, im just stating what I found out whilst trying to design my own background image, in the hope someone else might find it useful.

Hodgkinson.