TYPO3 Core

the "none" option has an empty value, I think that this is why TCEFORM.tt_content.space_before_class.altLabels does not work.
I guess that you should override LLL:EXT:frontend/Resources/Private/Language/locallang_ttc.xlf:space_class_none to translate it... I don't know if there are other ways to do so.

About your other problem (Set a default value) that's the wrong way to do. Try:

TCAdefaults {
        tt_content{
           space_before_class = extra-small
        }
}

Hi,

I thought plugin.[PluginName]._LOCAL_LANG.[language:default|de|fr|...] is meant for front-end language overrides? I have no idea how to make it work in backend..?

I have the same problem. There should be a difference between "none" and "Default" and there is currently no way to override the label via TypoScript or altLabels.

The issue behind this is following:

You can set altLabels by using the value of an item, for example

TCEFORM.tt_content.space_before_class.altLabels.extra-small = foobar

As the "none" fields have no value, this needed to be

TCEFORM.tt_content.space_before_class.altLabels.. = foobar2

Yes, you need the doubled points, to get an empty value to work.

Thanks Alexander, it works! :-)

I believe this issue can be closed, as both reported problems seem to have solution..?