This is what they sent after confirmation of appointment:
You must now take your printed application, appointment confirmation, supporting documents and the appropriate fee (unless paid online...) to the address shown below on the date and time of your appointment.
OK, then I opened link related - supporting documents, but still it is not clear regarding pictures. https://www.gov.uk/biometric-residen.../personal-data
Your personal data.
Youíll be asked to provide your biometric information as part of your visa or immigration application.
Youíll need to:
- have a digital photo taken of your face
- put your fingers on a glass screen to be scanned
- give your signature
The process takes less than 5 minutes and doesnít involve any ink or mess.
If you donít have any fingers or hands youíll only need to have a digital photo taken of your face. It will be noted on your records that youíre physically unable to provide fingerprints.
Where to provide your biometric information.
You need to give your biometrics at a visa application centre if youíre applying from outside the UK.