ColorLight

Now, if "Compute lighting on GPU" is enabled, lighting calculations will be performed on the GPU instead of the CPU, resulting in a more balanced load without significant lag.

You can also now disable "Smooth colored lighting" to turn off color lighting smoothing.

Additionally, the block state is now taken into account; for example, while a Redstone lamp used to remain lit at all times, it will no longer emit colored light when turned off. (Unactivated redstone lamps color the blocks around them)