What does this mean for Kensal Risers?

No More Orange lines!

Stratford to Richmond/Clapham Junction is now the Mildmay line (Blue)

Euston to Watford Junction is now the Lioness line (Yellow)

As for the rest of the lines:

The Windrush line: Red

Formely Highbury & Islington to Clapham Junction/New Cross/Crystal Palace/West Croydon

The Weaver line: Maroon

Formely Liverpool Street to Cheshunt/Enfield Town/Chingford

The Suffragette line: Green

Formely Gospel Oak to Barking Riverside

The Liberty line: Grey

Formely Romford to Upminster