Restore classic history-graph: Current values should be Opt-In, not forced

[pfgit24]

What type of request is this?

Enhancement to existing card/feature

Existing card or feature name

{"Card" => "History graph"}

Describe the enhancement

I propose a change to the history-graph card logic to restore its core purpose: visualizing historical data without clutter.
The recent update forced "current values" into the legend and axes, which is a significant UI regression. I suggest introducing a new parameter:

Property: show_current_value
Default: false (Classic clean look)
Optional: true (Enables the new display for those who want it)

It’s a history-graph, not a present-graph! Forcing users to accept a major visual change without a toggle decreases user acceptance and breaks established dashboard designs.

Use cases

Logical Consistency: When analyzing a 24h timeframe from yesterday, a "live" value from now is irrelevant and misleading.
Visual Integrity: Maintaining the minimalist design of Home Assistant. The forced values clutter the UI, especially on mobile devices or dense dashboards.
User Acceptance: Changes to long-standing defaults should always be optional. Forcing users to switch to complex custom cards (like ApexCharts) or use CSS hacks just to regain a basic function is a poor user experience.
Efficiency: Prevents the need to manually update dozens of existing cards across multiple dashboards.

Visual examples

This discussion follows the closed issue with screenshot from https://github.com/3ative:
home-assistant/home-assistant.io#44451

Anything else?

No response

[KDPate]

Yes, please! The referenced change baffles me completely. At least give us the option to undo it.

[skipgub]

Agree. Really annoying when I am trying to see a three-day time series: I have separate gauges for current values and explicitly do NOT want them on a history graph. How to turn off? Or failing that removed the legend altogether?