[Question] Is there a way to animate a container's expansion in the opposite direction?

[nelson-python]

Question

Hello,

Regarding the following app:

If I increase the size (e.g., height) of the green container:

green_container.height = green_container.height * 3
green_container.update()

...I notice the following:

...which is expected behavior.

However, if I increase the size (e.g., height) of the blue container:

blue_container.height = blue_container.height * 3
blue_container.update()

I notice the following:

...which is unexpected behavior.

The reason for this is that blue container is expanding in height downwards (which is outside the border of my app).

I've been able to find a workaround using an offset for the blue container (increasing its size beforehand) but would rather expand the blue container like I do with the green container.

Question: Is there a way to expand the height for the blue container, such that it expands upwards (which lies within my app) rather than downwards (which lies outside my app)?

Note: All containers (red, blue, green, amber) are in a stack control.

Thank you,
Nelson

Code sample

No response

Error message

No response

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• I have searched for answers to my question both in the issues and in previous discussions.