Decal Beautification + Palette Update (#25689)

the meat and potatoes

YEAH

(cherry picked from commit 0001c23df2c917c66c74cde31110285826b9d979)

Resources/Prototypes/Palettes/departmental.yml

@@ -10,5 +10,10 @@
     bar: "#79150096"
     epistemics: "#D381C996" # DeltaV - Epistemics Department replacing Science
     logistics: "#A4610696" # DeltaV - Logistics Department replacing Cargo
+    janitor: "#8c347f96"
+    chemistry: "#fa750096"
+    virology: "#43990996"
+    atmospherics: "#3eb38896"
+    salvage: "#8d1c9996"
     neutral: "#D4D4D496"
     neutralLight: "#D4D4D428"

Resources/Textures/Decals/Overlays/greyscale.rsi/meta.json

@@ -1,7 +1,7 @@
 {
   "version": 1,
   "license": "CC-BY-NC-SA-3.0",
-  "copyright": "mirrorcult",
+  "copyright": "mirrorcult, texturized by aexxie",
   "size": {
     "x": 32,
     "y": 32