╭🟥╮

#rounded square #squircle #curved corners #icon shape #unicode art

╭⬜️╮

#rounded square #squircle #curved corners #box-drawing characters #corner emphasis

◜◝◟◞

#curved corners #rounded border elements #corner shapes #frame corners #bezier curve corners #unicode curves

╭╮

#arcs #top brackets #curved corners #segment curves #box drawing curves #partial circles