rename for consistency

karl2d.odin

@@ -44,7 +44,7 @@ init :: proc(window_width: int, window_height: int, window_title: string,
 	win.init(s.window_state, window_width, window_height, window_title, allocator)
 	s.window = win.window_handle()
 
-	s.rb = RENDER_BACKEND_D3D11
+	s.rb = RENDER_BACKEND_INTERFACE_D3D11
 	rb = s.rb
 	rb_alloc_error: runtime.Allocator_Error
 	s.rb_state, rb_alloc_error = mem.alloc(rb.state_size())

render_backend_d3d11.odin

@@ -4,7 +4,7 @@
 package karl2d
 
 @(private="package")
-RENDER_BACKEND_D3D11 :: Render_Backend_Interface {
+RENDER_BACKEND_INTERFACE_D3D11 :: Render_Backend_Interface {
 	state_size = d3d11_state_size,
 	init = d3d11_init,
 	shutdown = d3d11_shutdown,