CollisionPolygon3D lacks the color customization options that CollisionShape3D has

[Calinou]

• Related to CollisionPolygon3D is not visible in the running project when Visible Collision Shapes is enabled in the Debug menu #101413.

Tested versions

• Reproducible in: 4.4.dev 24d7451

System information

Godot v4.4.dev (24d7451) - Fedora Linux 41 (KDE Plasma) on X11 - X11 display driver, Multi-window, 1 monitor - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 4090 (nvidia; 565.77) - 13th Gen Intel(R) Core(TM) i9-13900K (32 threads)

Issue description

#90644 implemented the ability to customize collision shape colors, but the CollisionPolygon3D node lacks this functionality:

Additionally, it does not draw filled shape colors, which is inconsistent with other collision shapes.

cc @BattyBovine

Steps to reproduce

• Create a CollisionPolygon3D node and add a few points to it.
• Notice how the inspector lacks properties to change the debug color and fill, and that no fill is drawn by default.

Minimal reproduction project (MRP)

test_collision_polygon3d.zip