I thought the borough had 3 - Orpington, Beckenham (which show on that map as the Tory ones) and the one I’ve circled which is projected to be Labour. But perhaps there’s only 2 constituencies in Bromley now
View attachment 369537
yes looks like it's Bromley and Chislehurst.
blue ones are Beckenham, Orpington, Old Bexley and Sidcup, Bexleyheath and Crayford. according to this map, unless it's out of date Election Maps