$$\begin{array}{c}\mathrm{\text{default: (accent=true)}}\hfill \\ \underset{\text{'}}{x}\underset{^}{x}\underset{\_}{x}\underset{`}{x}\underset{~}{x}\underset{¨}{x}\underset{¯}{x}\underset{´}{x}\underset{¸}{x}\underset{ˆ}{x}\underset{ˇ}{x}\underset{˘}{x}\underset{\dot{}}{x}\underset{˚}{x}\underset{˜}{x}\underset{˝}{x}\underset{̂}{x}\underset{̑}{x}\underset{‾}{x}\underset{⃛}{x}\underset{⃜}{x}\underleftarrow{x}\underrightarrow{x}\underleftrightarrow{x}\underset{\leftharpoonup }{x}\underset{\leftharpoondown }{x}\underset{\rightharpoonup }{x}\underset{\rightharpoondown }{x}\underset{⎴}{x}\underbracket{x}\underset{⏜}{x}\underset{⏝}{x}\underset{⏞}{x}\underbrace{x}\underset{⥎}{x}\underset{⥐}{x}\hfill \\ \mathrm{\text{accent=false:}}\hfill \\ \underset{\text{'}}{x}\underset{^}{x}\underset{\_}{x}\underset{`}{x}\underset{~}{x}\underset{¨}{x}\underset{¯}{x}\underset{´}{x}\underset{¸}{x}\underset{ˆ}{x}\underset{ˇ}{x}\underset{˘}{x}\underset{\dot{}}{x}\underset{˚}{x}\underset{˜}{x}\underset{˝}{x}\underset{̂}{x}\underset{̑}{x}\underset{‾}{x}\underset{⃛}{x}\underset{⃜}{x}\underleftarrow{x}\underrightarrow{x}\underleftrightarrow{x}\underset{\leftharpoonup }{x}\underset{\leftharpoondown }{x}\underset{\rightharpoonup }{x}\underset{\rightharpoondown }{x}\underset{⎴}{x}\underbracket{x}\underset{⏜}{x}\underset{⏝}{x}\underset{⏞}{x}\underbrace{x}\underset{⥎}{x}\underset{⥐}{x}\hfill \end{array}$$