First example in online Prefab docs, under Template Expressions under Concepts->Expressions seems faulty #486

What happened?

I am a newbie on Github collaboration and also Prefab. I read the Contributing doc but did not see any guidelines for issues on online docs.I could not find any other classification than a "bug" which it is not, but a doc issue. Pardon me if I am doing this all wrong.

Refering to the First example in online docs Template Expressions under Expressions under Concepts seems faulty . Clicking the + and - Buttons show "NaN" in the Badge. And the explanatory para below the code refers to the display as a Text("{{ count }}") component but the code specifies Badge("{{ count }}", variant="{{ count > 0 ? 'success' : 'destructive' }}"). And not Text, though it may compile to Text underneath.

And the variant prop is not explained here, maybe later down

Example Code

from prefab_ui.components import Button, Row, Badge
from prefab_ui.actions import SetState


with Row(gap=3, align="center"):
    Button("-", variant="outline", on_click=SetState("count", "{{ count - 1 }}"))
    Badge("{{ count }}", variant="{{ count > 0 ? 'success' : 'destructive' }}")
#doc says Text(...
    Button("+", variant="outline", on_click=SetState("count", "{{ count + 1 }}"))

Version Information

https://prefab.prefect.io/docs/concepts/expressions. The tag leading from the doc page to github repo shows Prefab v0.20.2. Firefox 152.0.6 and Chromium 150.0.7871.128  on Ubuntu 24.04.4 LTS.