pub trait Assets {
// Required methods
fn material_png_raw(&mut self, png: &[u8], label: &str) -> MaterialRef;
fn material_png(&mut self, name: &str) -> MaterialRef;
fn set_prefix(&mut self, prefix: &str);
fn frame_fixed_grid_material_png(
&mut self,
name: &str,
grid_size: UVec2,
) -> FixedAtlas;
fn bm_font(&mut self, name: &str) -> FontAndMaterialRef;
fn now(&self) -> Millis;
}