Describe the feature

I would like the option for the shields bar to anchor to the remaining HP, rather than a fixed point in the player frame. Example in the Party frame, top-left, vs how Player frame currently acts in bottom-right. Red is HP, blue is Shields, Black is background.

Describe the implementation

When changing the anchor point for the Shields Bar, I would like to have an option to anchor it to the remaining HP, or have an option to enable a Shield Texture (with Reverse Fill) to the Health bar like in the default Cell Appearance options.