What I'm saying is that there should be a cross-platform standard like Vulkan or like the Document Object Model for accessibility. Toolkits should use implemen

What I'm saying is that there should be a cross-platform standard like Vulkan or like the Document Object Model for accessibility. Toolkits should use implementations of that standard to enable accessibility like they use implementations of Vulkan or OpenGL to render graphics. In turn, applications should use the toolkits, as you've said. I don't know if there is a "Khronos Group" for Accessibility Standards. Maybe there is.