Pierre Laborde

@labordep Hard to say *remotely*. But you migt want to debug the issue locally - in the settings browser you can **enable the development environment** and then check in the...

I'm trying to do that, when I click on "Enable development environment" a playground is opening.  But when I open the "New" panel, there is no exception :( How...

How to remove a when:do: listener? when:do: should return the listener to remove it later if necessary. I propose to do that: ```smalltalk BlElement>>when: anEventClass do: aBlock ^ self addEventHandlerOn:...

After to discuss with @plantec, it's appears than when:do: should be deprecated because this is not symmetric and a little confusing because the add handler is not clear.

`when:doOnce:` is ok because it manage the lifecycle of the event handler itself.

I think it is necessary to have the feature when necessary. I think the problem is: how to display it when necessary :) ?

Remember that: https://github.com/OpenSmock/Molecule/issues/26 Same problem?

This is major because I cannot edit Toplo view with theme!

@plantec says that it should be better to ask the Theme class and not the Theme instance.

That's why I prefer to implement "=" in Themes :)