Enables the ability to toggle sRGB write mode on Vulkan framebuffers.
In a Linear Color Space workflow, enabling sRGB write mode allows the GPU to automatically perform linear-to-sRGB conversion and ensures that blending operations are mathematically correct. This setting is always enabled in Editor mode.
This is particularly useful for projects that require parity with OpenGL's GL_FRAMEBUFFER_SRGB behavior or for custom rendering pipelines that need to precisely control when gamma correction is applied (e.g., bypassing it for UI overlays or specific post-processing passes).
Note: Enabling this setting requires an extra blit operation when presenting the back buffer,
which can lead to performance degradation, particularly on mobile/tile-based GPUs.
It should remain disabled unless your shaders or workflow explicitly require the ability to toggle the sRGB write state.
Additional resources: Linear Color Space in Unity