THOMAS MUKOYA MOST of us have accepted COVID-19 face masks as an inconvenient, albeit necessary, safety measure. For the style-conscious like James Maina Mwangi, however, they are an unmissable fashion opportunity. Mwangi's brightly coloured suits and hats made him stand out even on the busy streets of Nairobi's Umoja neighbourhood, where nobody ever seems to sleep. Since the pandemic hit and Kenya made face masks mandatory, his outfits have become even more eye-catching. This week, the 59-year-old jack of all trades modelled his collection of face masks for Reuters. "Men knew how to wear clothes in black, brown, grey or…