Thanks, that works.
We can just call:
expandedForm replaceColor: Color white withColor: Color transparent

The method Form>>replaceColor: oldColor withColor: newColor does change the
form in place so there is no need to re-assign to the variable.
I'm a little confused to why this did not work before.

Best,
Karl

On Thu, Feb 18, 2016 at 4:18 PM, marcel.taeumel <Marcel.Taeumel at hpi.de>
wrote:

> Hi Karl,
>
> the semi-colon after "asFormOfDepth: Display depth" is wrong because that
> call creates a new form. You have to wrap it into parentheses and then call
> "replace.." on the result. :-)
>
> Best,
> Marcel
>
>
>
> --
> View this message in context:
> http://forum.world.st/Painful-Form-errors-tp4878535p4878550.html
> Sent from the Squeak - Dev mailing list archive at Nabble.com.
>
>
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