[TYPO3-core] FYI: #13327: Update ExtJS to version 3.1

[David Bruchmann]

Hi,

>
> David Bruchmann schrieb:
>> Hi,
>>
>> is there any reason whe the gray theme isn't included?
>>
>> The blue theme is really ugly on some pages (or in general).
>>
>
Steffen Kamper schrieb:
> we don't have a grey theme - we have a modified theme in t3skin which
> still is active.
>

yes, but the included them is blue.

The distributed packets of extJs include all a gray theme and 
additionaly a CSS for blank containers.

Both are useful and gray is much more applicable to most FE-pages than blue.

Best Regards
David