message: Make AbstractBaseShader._defaults protected again
diff: @@ -7,7 +7,7 @@ declare abstract class AbstractBaseShader extends PIXI.Shader {
  /**
  * The initial default values of shader uniforms
  */
  - _defaults: AbstractBaseShader.Uniforms;
  + protected _defaults: AbstractBaseShader.Uniforms;
  /**
  * The default vertex shader used by all instances of AbstractBaseShader
  