Let us add the `\tparam` descriptions, too.
```c++
/** ...
  * \tparam T_Dim Implementation for 2D or 3D
  * \tparam T_ParticleShape the particle shape for the species, \see picongpu::particleShape
  * \tparam T_NumericalCellType the definition of the fields on the grid, \see picongpu::NumericalCellType
  */
```