tested fixed tested fixed tested.

code/__DEFINES/misc.dm

@@ -264,9 +264,11 @@ GLOBAL_LIST_INIT(pda_styles, list(MONO, VT, ORBITRON, SHARE))
 
 //pda icon reskins
 #define PDA_SKIN_CLASSIC "Classic"
+#define RESKIN_SUFFIX_CLASSIC ""
 #define PDA_SKIN_ALT "Holographic"
+#define RESKIN_SUFFIX_ALT "_alt"
 
-GLOBAL_LIST_INIT(pda_reskins, list(PDA_SKIN_CLASSIC = "", PDA_SKIN_ALT = "_alt"))
+GLOBAL_LIST_INIT(pda_reskins, list(PDA_SKIN_CLASSIC = RESKIN_SUFFIX_CLASSIC, PDA_SKIN_ALT = RESKIN_SUFFIX_ALT))
 
 //Color Defines
 #define OOC_COLOR  "#002eb8"

code/game/machinery/PDApainter.dm

@@ -110,13 +110,10 @@
 	if(!storedpda)
 		to_chat(user, "<span class='notice'>[src] is empty.</span>")
 		return
-	var/list/P = input(user, "Select the new skin!", "PDA Painting") as null|anything in colorlist
-	if(!P)
-		return
-	if(!in_range(src, user))
-		return
-	if(!storedpda)//is the pda still there?
+	var/choice = input(user, "Select the new skin!", "PDA Painting") as null|anything in colorlist
+	if(!choice || !storedpda || !in_range(src, user))
 		return
+	var/list/P = colorlist[choice]
 	storedpda.base_skin = P[1]
 	storedpda.desc = P[2]
 	storedpda.overlays_offsets = P[3]

code/game/objects/items/devices/PDA/PDA.dm

@@ -126,19 +126,19 @@ GLOBAL_LIST_EMPTY(PDAs)
 /obj/item/pda/reskin_obj(mob/M)
 	if(!LAZYLEN(GLOB.pda_reskins))
 		return
-	var/dat = "<b>Reskin options for [name]:</b>\n"
+	var/dat = "<b>Reskin options for [name]:</b>"
 	for(var/V in GLOB.pda_reskins)
-		var/output = icon2html(src, M, "[base_skin][unique_reskin[V]]")
-		dat += "[V]: <span class='reallybig'>[output]</span>\n"
+		var/output = icon2html(icon, M, "[base_skin][GLOB.pda_reskins[V]]")
+		dat += "\n[V]: <span class='reallybig'>[output]</span>"
 	to_chat(M, dat)
 
-	var/choice = input(M,"Choose the a reskin for [src]","Reskin Object") as null|anything in GLOB.pda_reskins
-	if(!QDELETED(src) && choice && !M.incapacitated() && in_range(M,src))
-		if(unique_reskin[choice] == current_skin || isnull(unique_reskin[choice]))
-			return
-		current_skin = unique_reskin[choice]
-		set_new_overlays_offsets()
-		update_icon()
+	var/choice = input(M, "Choose the a reskin for [src]","Reskin Object") as null|anything in GLOB.pda_reskins
+	var/new_skin = GLOB.pda_reskins[choice]
+	if(QDELETED(src) || isnull(new_skin) || new_skin == current_skin || M.incapacitated() || !in_range(M,src))
+		return
+	current_skin = new_skin
+	set_new_overlays_offsets()
+	update_icon()
 	to_chat(M, "[src] is now skinned as '[choice]'.")
 
 /obj/item/pda/proc/set_new_overlays_offsets()

code/game/objects/items/devices/PDA/PDA_types.dm

@@ -187,7 +187,7 @@
 	desc = "A portable microcomputer by Thinktronic Systems, LTD. This model is a WGW-11 series e-reader."
 	note = "Congratulations, your station has chosen the Thinktronic 5290 WGW-11 Series E-reader and Personal Data Assistant! To help with navigation, we have provided the following definitions. North: Fore. South: Aft. West: Port. East: Starboard. Quarter is either side of aft."
 	silent = TRUE //Quiet in the library!
-	overlays_offsets = list(PDA_SKIN_CLASSIC = list(-3,0))
+	overlays_offsets = list(RESKIN_SUFFIX_CLASSIC = list(-3,0))
 	overlays_x_offset = -3
 
 /obj/item/pda/clear

code/game/objects/objs.dm

@@ -247,9 +247,8 @@
 	to_chat(M, dat)
 
 	var/choice = input(M, always_reskinnable ? "Choose the a reskin for [src]" : "Warning, you can only reskin [src] once!","Reskin Object") as null|anything in unique_reskin
-	if(!QDELETED(src) && choice && (!current_skin || always_reskinnable) && !M.incapacitated() && in_range(M,src))
-		if(!unique_reskin[choice] || unique_reskin[choice] == current_skin)
-			return
-		current_skin = choice
-		icon_state = unique_reskin[choice]
-		to_chat(M, "[src] is now skinned as '[choice]'.")
+	if(QDELETED(src) || !choice || (current_skin && !always_reskinnable) || M.incapacitated() || !in_range(M,src) || !unique_reskin[choice] || unique_reskin[choice] == current_skin)
+		return
+	current_skin = choice
+	icon_state = unique_reskin[choice]
+	to_chat(M, "[src] is now skinned as '[choice]'.")

code/modules/clothing/chameleon.dm

@@ -227,7 +227,7 @@
 	target.icon = initial(picked_item.icon)
 
 /datum/action/item_action/chameleon/change/pda/update_item(obj/item/pda/picked_item)
-	if(!istype(picked_item) || !istype(target, /obj/item/pda))
+	if(!istype(target, /obj/item/pda))
 		return ..()
 	var/obj/item/pda/P = target
 	P.icon = initial(picked_item.icon)