====== Settings ======

X4D's Settings widget allows users to specify how the application appears and behaves.

{{:X4D_SettingsDialog.png}}

  * **CPU Threading** With two CUDA-capable graphics cards, object tracking can be made faster when each card is controlled by its own CPU thread.
  * **X-Ray Opacity** The opacity of the X-ray images in the 2D and [[other:dsx:x4d:x4d_3d_view|3D View]] windows. Their opacity should be less than 1.0 so that the DRRs can be seen superimposed on them. The default value is 0.5.
  * **Simulated Annealing Temp** The initial temperature for the [[other:dsx:x4d:4d_optimization|ASA simulated annealing algorithm]]. The higher the initial temperature, the more slowly the search range will narrow during the optimization. The default value is 2000.
  * **Color Theme** You can choose between a light and dark color theme for the graphical interface.