If nothing happens, type /console scriptErrors 1 to enable Lua errors. Then re-type /hotpw veil . If you see an error about "Texture [...] not found," you placed PaleTextures in the wrong folder. If you see "attempt to index a nil value," your Local_Config.lua is malformed.
The Architecture of Grief: Unraveling the Halls of the Pale Widow
: If you cannot look up or down, the developer recommends deleting Settings.ini located in %LocalAppData%\HallsOfPaleWidow\Saved\Config\Windows .