MrxGuiCinematicLayout
Byte-for-byte identical to resident/MrxGuiCinematicLayout — see that page for full documentation of its functions, inheritance, and events.
In the shell context
Layout data for the “Cinematic Placeholder” widget (background image, picture, placeholder text, subtitle, and supersubtitle children), paired 1:1 with MrxGuiCinematic’s event handlers. Loaded by MrxGuiShellBootstrap.LoadMovieLayouts() in the same pass as the attract layout, so this widget tree exists in the shell build whether or not a mission is ever entered.