Unused nodes to be removed:

artdeco:1c
artdeco:1d
artdeco:1f
artdeco:1g
artdeco:1i
artdeco:1j
artdeco:1k
artdeco:1l
artdeco:2b
artdeco:decoblock2
artdeco:decoblock4
artdeco:decoblock5
artdeco:tile5
moreblocks:clean_glow_glass
moreblocks:clean_super_glow_glass
moreblocks:desert_cobble_compressed
moreblocks:tar
my_door_wood:wood_brown
my_door_wood:wood_grey
scifi_nodes:blackoct
scifi_nodes:blackpipe
scifi_nodes:blackvnt
scifi_nodes:bluetile
scifi_nodes:doomengine
scifi_nodes:doomlight
scifi_nodes:doomwall2
scifi_nodes:doomwall4
scifi_nodes:doomwall41
scifi_nodes:doomwall42
scifi_nodes:doomwall43
scifi_nodes:doomwall431
scifi_nodes:doomwall44
scifi_nodes:fan
scifi_nodes:green2
scifi_nodes:greenbar
scifi_nodes:greenlights
scifi_nodes:greenlights2
scifi_nodes:greenmetal2
scifi_nodes:greybolts
scifi_nodes:greygreenbar
scifi_nodes:holes
scifi_nodes:octofloor
scifi_nodes:octofloor2
scifi_nodes:pplblk
scifi_nodes:ppllght
scifi_nodes:pplwll3
scifi_nodes:purple
scifi_nodes:red
scifi_nodes:red_square
scifi_nodes:rock2
scifi_nodes:rust
scifi_nodes:screen3
scifi_nodes:stripes2top
technic:blast_resistant_concrete
technic:cast_iron_block
technic:marble
technic:marble_bricks
techpack_stairway:lattice
terumet:block_coke
terumet:block_con_orange
terumet:block_con_pink
terumet:block_entropy

Also unused, but requested to be kept:

asteroid:redgravel
caverealms:mushroom_cap
cblocks:wood_magenta
cblocks:wood_violet
mahogany:leaves