Fields
- blendEnable: VkBool32
- srcColorBlendFactor: VkBlendFactor
- dstColorBlendFactor: VkBlendFactor
- colorBlendOp: VkBlendOp
- srcAlphaBlendFactor: VkBlendFactor
- dstAlphaBlendFactor: VkBlendFactor
- alphaBlendOp: VkBlendOp
- colorWriteMask: VkColorComponentFlags