The purple t-shirts are for “Christians Together at Pride”, with some for “Soho Masses”. The “Welcome” banner is for “LGBTCatholicsWestminster”, the successor to what were once known as the “Soho Masses”.
The next picture shows the old and new banners, for Soho Masses and LGBTCatholicsWestminster side by side. (“Soho Masses” have not been shut down – just moved):
Also at London Pride this year were “Positive Catholics”, a mutual support group for Catholics living with HIV / AIDS.
(All pictures courtesy of Martin Pendergast)