Here is example code to apply the blur transform to the master layer when a choice menu is displayed, along with applying a fade-in and fade-out effect of the choice items.
This was tested on Ren'Py 7.4.0.1167.
| screen choice(items): | |
| style_prefix "choice" | |
| $ renpy.show_layer_at(choice_bg_transform_show, layer='master') | |
| on "hide" action Function(renpy.show_layer_at, choice_bg_transform_hide, layer='master') | |
| vbox at choice_transform: | |
| for i in items: | |
| textbutton i.caption action i.action | |
| transform choice_bg_transform_show: | |
| blur 20.0 | |
| transform choice_bg_transform_hide: | |
| blur 0.0 | |
| transform choice_transform: | |
| alpha 0.0 | |
| easein 1.0 alpha 1.0 | |
| on hide: | |
| easein 1.0 alpha 0.0 |
@SlayerA259 No, only screen.rpy.