livecode changes image colors without being asked to do it

Mark Waddingham mark at
Thu Aug 31 11:55:23 EDT 2017

On 2017-08-31 17:46, Robert Brenstein via use-livecode wrote:
> Mark, if you follow the thread, you will find that I hit a known
> problem and it was remedied in a newer version of LC8. The comment/tip
> from Keith is quite useful since the files I produce are printed by
> different print shops in different countries. The shop I use locally
> accepts files with sRGB but warns that color might be slightly off due
> to conversion to CMYK.

That's why I was intrigued - I inferred that your fix was to use an sRGB 
profile in the JPEGs rather than CMYK.

However, there still sounds like an issue somewhere - the engine should 
cope with CMYK, so assuming there is a profile in the JPEG for CMYK it 
should display similar to Preview. I know CMYK JPEGs are a bit gnarly so 
having an example which doesn't work quite right might help them work a 
little better and more consistent generally.

Of course, I could have misunderstood entirely!

Warmest Regards,


Mark Waddingham ~ mark at ~
LiveCode: Everyone can create apps

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