This removes the alien seed stacking, since they stack 1:1 (An alternative solution would be to alter the recipes after deadlock creates them) and fixes the icon for stacked high-tech parts:

diff --git a/migrations/items.lua b/migrations/items.lua
index 378e7bd..4955bed 100644
--- a/migrations/items.lua
+++ b/migrations/items.lua
@@ -5,8 +5,6 @@ local Items = {}
 Items.items = {
     -- Alien Strctures
     ["ei_alien-resin"] = { icon = mod .. "stacked-alien-resin.png", icon_size = 64 },
-    ["ei_alien-seed"] = { icon = mod .. "stacked-alien-seed.png", icon_size = 64 },
-    ["ei_blooming_alien-seed"] = { icon = mod .. "stacked-blooming-alien-seed.png", icon_size = 64 },
     -- Dark Age
     ["ei_poor-iron-chunk"] = { icon = mod .. "stacked-poor-iron-chunk.png", icon_size = 64 },
     ["ei_poor-copper-chunk"] = { icon = mod .. "stacked-poor-copper-chunk.png", icon_size = 64 },
@@ -87,8 +85,6 @@ Items.items = {
     ["ei_cryocondensate"] = { icon = mod .. "stacked-cryocondensate.png", icon_size = 64 },
     ["ei_sus-plating"] = { icon = mod .. "stacked-sus-plating.png", icon_size = 64 },
     ["ei_bio-matter"] = { icon = mod .. "stacked-bio-matter.png", icon_size = 64 },
-    ["ei_evolved-alien-seed"] = { icon = mod .. "stacked-evolved-alien-seed.png", icon_size = 64 },
-    ["ei_blooming-evolved-alien-seed"] = { icon = mod .. "stacked-blooming-evolved-alien-seed.png", icon_size = 64 },
     ["ei_silicon"] = { icon = mod .. "stacked-silicon.png", icon_size = 64 },
     ["ei_monosilicon"] = { icon = mod .. "stacked-monosilicon.png", icon_size = 64 },
     -- Computer Age/high-temperature-reactor
@@ -139,7 +135,7 @@ Items.items = {
     ["ei_eu-magnet"] = { icon = mod .. "stacked-eu-magnet.png", icon_size = 64 },
     ["ei_exotic-matter-up"] = { icon = mod .. "stacked-exotic-matter-up.png", icon_size = 64 },
     ["ei_exotic-matter-down"] = { icon = mod .. "stacked-exotic-matter-down.png", icon_size = 64 },
-    ["ei_high-tech-parts"] = { icon = mod .. "stacked-exotic-matter-down.png", icon_size = 64 },
+    ["ei_high-tech-parts"] = { icon = mod .. "stacked-high-tech-parts.png", icon_size = 64 },
     ["ei_advanced-rocket-fuel"] = { icon = mod .. "stacked-advanced-rocket-fuel.png", icon_size = 64 },
     ["ei_lithium-crystal"] = { icon = mod .. "stacked-lithium-crystal.png", icon_size = 64 },
     -- Quantum Age/quantum-computer