GPUParticles attractors and collision are currently only available in 3D.
Their 2D counterparts haven't been implemented yet, but they will use
separate nodes.
More saturated icons go better with the new editor theme.
These color changes only apply when using a dark theme.
The editor icon saturation can still be adjusted in the Editor Settings.
Setting the editor icon saturation setting to 0.77 should roughly match
the old icon saturation.