private void OnDisable()
{
Object.DestroyImmediate(this.m_TierSettingsEditor);
this.m_TierSettingsEditor = null;
Object.DestroyImmediate(this.m_BuiltinShadersEditor);
this.m_BuiltinShadersEditor = null;
Object.DestroyImmediate(this.m_AlwaysIncludedShadersEditor);
this.m_AlwaysIncludedShadersEditor = null;
Object.DestroyImmediate(this.m_ShaderStrippingEditor);
this.m_ShaderStrippingEditor = null;
Object.DestroyImmediate(this.m_ShaderPreloadEditor);
this.m_ShaderPreloadEditor = null;
}