The athletics track was covered with a layer of recycled concrete to protect it during the heavy lifting. In November 2013 work commenced to remove the fourteen floodlight panels as part of the £200 million conversion of the stadium. In March 2015 work began on installing the new floodlights. Each floodlight panel is tall and weighs , and will sit above the stadium's floor, suspended from the roof rather than sitting on top; in total there are 14 panels. As the floodlight work began, work on a steel halo structure that encircles the stadium, containing 96 turnstiles, catering and toilet facilities, concluded. The black and white seating design from the Olympics, was replaced with a white, blue and claret design. The new design includes West Ham's name on the East Kop Stand and symbolic crossed hammers on all lower tier stands, and the retention of the 2012 shard design on the upper tier, albeit in new colouring to match the Stadium's anchor tenant. Work continued through 2016 to transform the stadium into a home for West Ham, with the club's colours and giant model West Ham shirts added to the stadium concourse. A West Ham store and coffee shop was opened on 23 June. In February 2019, it was announced that the East Stand would be renamed in honour of Billy Bonds. In an attempt to make the London Stadium more like their home ground, in April 2019 a £250,000 claret-coloured pitch surround was announced and installed. In February 2020, West Ham announced planned alterations to the stadium introducing two new lower tier stands moving supporters closer to the pitch, many by more than four metres. In March 2020, West Ham, opened a Sensory room at the stadium for fans. Following the demolition of the 2012 warm up track and to comply with IAAF rules requiring a warm up track at Construction Category 1 facilities, a new 6 lane community track (8 lanes on the straights) has been created immediately adjacent to the south of the stadium. The track is home to Newham and Essex Beagles Athletic Club from 2017 and opened for around 250 days of the year. The construction of the track was funded by a grant from the London Marathon Trust. The Olympic Stadium hosted its first public event on 31 March 2012, serving as the finish line for the "National Lottery Olympic Park Run". Five thousand participants (including celebrities, British athletes and members of the public who won a draw organised by the National Lottery) took part in a five-mile run around Olympic Park, entering Olympic Stadium to the theme from "Chariots of Fire" to run the final 300 metres on its track.