(This is more of an OCD/personal preference thing than anything so it isn't that urgent.)

Have a look at the attached screenshots if you want  a visual example.

When I search "slab" in the creative inventory, it lists all the wood ones in order. Makes sense.

However, when I search "stairs" in the creative inventory, it has purpur stairs as the first result and all the wood stairs are disorganized.

All I request is that you make the results for slabs, stairs, and other forms of the same blocks consistently organized. Preferably, you organize it by grouping all the wood ones together, all the stone ones together, etc.