[Bug]: Blinking on with Missing blinking Image

[Addaadostuff]

Describe the bug?

You can enable the blinking function without an image to show.

As a result, the image disappears for a few seconds with each blink.

To Reproduce

1. new Screen object
2. set neutral Image
3. enable (if not already enabled) "has Blinking Texture"

Expected behavior

Ignore Blinking if no Image is Set.

Show warning on or near "has Blinking Texture" Option
or show Warning in Menu

Screenshots

No response

Godot Version

4.2.2

What Platforms does this occur on?

Windows

Additional Context

No response

[Addaadostuff]

Same for "talking" and "blinking and talking"

[quellus]

We believe this is, for the most part, intended behavior.

We do want to give the user more feedback tho. I agree that there should be warning text when there are images missing.