Draws a texture using this panel's CSS box styling (border radius, border image, background position/size,
tint, blend mode, filter mode, etc.) and adds the resulting descriptor to Sandbox.UI.Panel.CachedDescriptors.
<para>
This is intended for controls like Sandbox.UI.Image, Sandbox.UI.ScenePanel, and Sandbox.UI.SvgPanel
that render a texture as their primary content while respecting the panel's CSS properties.
For simple texture drawing without CSS styling, use Sandbox.UI.Panel.Draw.Texture(Sandbox.Texture,Sandbox.Rect,System.Nullable{Color}) instead.
</para>