Is it technically necessary to have a separate opacity action/condition/expression for Sprite, Tiled-Sprite, Panel-Sprite,
Text, BBC-Text, Bitmap-Text, Shape-Fill, Shape-Outline, Video,…?
Many other things like position, hide, order, delete, etc. work with just one action regardless of the object type.
If you’re already here… A click on the “Effects” tag in Game Examples showed no examples. A search for Effects shows seven.