[gnome-shell-sass] screenshot: Disable screencasts when locked

[Florian Müllner <fmuellner src gnome org>]

commit c1400a1af469ba0de2e75d9027afc045f6b4b1e6
Author: Florian Müllner <fmuellner gnome org>
Date:   Sun Aug 21 20:59:25 2022 +0200

    screenshot: Disable screencasts when locked
    
    It is currently not possible to bring up the screenshot UI while
    locked, but that is about to change.
    
    We still don't want screencasts in that case, because they are
    much easier to abuse for filling up someone else's disk.
    
    That restriction is enforced by inhibiting remote access in the
    backend, so trying to create a screencast session will fail anyway.
    Still, not offering an action that is unavailable is better than
    having it fail silently, so do exactly that.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2439>

 widgets/_screenshot.scss | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/widgets/_screenshot.scss b/widgets/_screenshot.scss
index f7fa3da..150f273 100644
--- a/widgets/_screenshot.scss
+++ b/widgets/_screenshot.scss
@@ -98,6 +98,7 @@ $screenshot_ui_button_red: $error_color;
   &:hover, &:focus { background-color: lighten($osd_bg_color, 10%);}
   &:active { background-color: lighten($active_bg_color,5%);}
   &:checked { background-color: white;color: black;}
+  &:insensitive { color: transparentize($osd_fg_color, 0.5);}
 
   border-radius: $modal_radius - $screenshot_ui_shot_cast_spacing;