refactor files to change variable name using colour to color. (#5396)

# About the pull request
refactor files to change variable name using colour to color on those
files:
1-misc_tools.dm, robot_items.dm, paper.dm
<!-- Remove this text and explain what the purpose of your PR is.

Mention if you have tested your changes. If you changed a map, make sure
you used the mapmerge tool.
If this is an Issue Correction, you can type "Fixes Issue #169420" to
link the PR to the corresponding Issue number #169420.

Remember: something that is self-evident to you might not be to others.
Explain your rationale fully, even if you feel it goes without saying.
-->

# Explain why it's good for the game
# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
:cl:
refactor: refactored files to change variable name using colour to
color.
/:cl:

Co-authored-by: Julien <[email protected]>

code/game/objects/items/tools/misc_tools.dm

@@ -161,7 +161,7 @@
 	matter = list("metal" = 10)
 	inherent_traits = list(TRAIT_TOOL_PEN)
 	/// what color the ink is!
-	var/pen_colour = "black"
+	var/pen_color = "black"
 	var/on = TRUE
 	var/clicky = FALSE
 
@@ -180,7 +180,7 @@
 /obj/item/tool/pen/proc/update_pen_state()
 	overlays.Cut()
 	if(on)
-		overlays += "+[pen_colour]_tip"
+		overlays += "+[pen_color]_tip"
 
 /obj/item/tool/pen/afterattack(atom/target, mob/user, proximity_flag, click_parameters)
 	. = ..()
@@ -246,7 +246,7 @@
 
 /obj/item/tool/pen/blue
 	desc = "It's a normal blue ink pen."
-	pen_colour = "blue"
+	pen_color = "blue"
 
 /obj/item/tool/pen/blue/clicky
 	desc = "It's a WY brand extra clicky blue ink pen."
@@ -255,7 +255,7 @@
 
 /obj/item/tool/pen/red
 	desc = "It's a normal red ink pen."
-	pen_colour = "red"
+	pen_color = "red"
 
 /obj/item/tool/pen/red/clicky
 	desc = "It's a WY brand extra clicky red ink pen."
@@ -264,7 +264,7 @@
 
 /obj/item/tool/pen/green
 	desc = "It's a normal green ink pen."
-	pen_colour = "green"
+	pen_color = "green"
 
 /obj/item/tool/pen/green/clicky
 	desc = "It's a WY brand extra clicky green ink pen."
@@ -273,7 +273,7 @@
 
 /obj/item/tool/pen/invisible
 	desc = "It's an invisible pen marker."
-	pen_colour = "white"
+	pen_color = "white"
 
 /obj/item/tool/pen/fountain
 	desc = "A lavish testament to the ingenuity of ARMAT's craftsmanship, this fountain pen is a paragon of design and functionality. Detailed with golden accents and intricate mechanics, the pen allows for a swift change between a myriad of ink colors with a simple twist. A product of precision engineering, each mechanism inside the pen is designed to provide a seamless, effortless transition from one color to the next, creating an instrument of luxurious versatility."
@@ -282,8 +282,8 @@
 	icon_state = "fountain_pen"
 	item_state = "fountain_pen"
 	matter = list("metal" = 20, "gold" = 10)
-	var/static/list/colour_list = list("red", "blue", "green", "yellow", "purple", "pink", "brown", "black", "orange") // Can add more colors as required
-	var/current_colour_index = 1
+	var/static/list/color_list = list("red", "blue", "green", "yellow", "purple", "pink", "brown", "black", "orange") // Can add more colors as required
+	var/current_color_index = 1
 	var/owner_name
 
 /obj/item/tool/pen/fountain/pickup(mob/user, silent)
@@ -305,9 +305,9 @@
 
 /obj/item/tool/pen/fountain/attack_self(mob/living/carbon/human/user)
 	if(on)
-		current_colour_index = (current_colour_index % length(colour_list)) + 1
-		pen_colour = colour_list[current_colour_index]
-		balloon_alert(user,"you twist the pen and change the ink color to [pen_colour].")
+		current_color_index = (current_color_index % length(color_list)) + 1
+		pen_color = color_list[current_color_index]
+		balloon_alert(user,"you twist the pen and change the ink color to [pen_color].")
 		if(clicky)
 			playsound(user.loc, 'sound/items/pen_click_on.ogg', 100, 1, 5)
 		update_pen_state()

code/modules/mob/living/silicon/robot/robot_items.dm

@@ -9,16 +9,16 @@
 /obj/item/tool/pen/robopen/attack_self(mob/user)
 	..()
 
-	var/choice = tgui_input_list(usr, "Would you like to change color or mode?", "Change Mode", list("Colour","Mode"))
+	var/choice = tgui_input_list(usr, "Would you like to change color or mode?", "Change Mode", list("Color","Mode"))
 	if(!choice)
 		return
 
 	playsound(src.loc, 'sound/effects/pop.ogg', 25, FALSE)
 
 	switch(choice)
-		if("Colour")
-			var/newcolour = tgui_input_list(usr, "Which color would you like to use?", list("black","blue","red","green","yellow"))
-			if(newcolour) pen_colour = newcolour
+		if("Color")
+			var/newcolor = tgui_input_list(usr, "Which color would you like to use?", list("black","blue","red","green","yellow"))
+			if(newcolor) pen_color = newcolor
 		if("Mode")
 			if (mode == 1)
 				mode = 2

code/modules/paperwork/paper.dm

@@ -258,7 +258,7 @@
 		t = replacetext(t, "\[upp\]", "<img src = [asset.get_url_mappings()["upplogo.png"]]>")
 		t = replacetext(t, "\[cmb\]", "<img src = [asset.get_url_mappings()["cmblogo.png"]]>")
 
-		t = "<font face=\"[deffont]\" color=[P ? P.pen_colour : "black"]>[t]</font>"
+		t = "<font face=\"[deffont]\" color=[P ? P.pen_color : "black"]>[t]</font>"
 	else // If it is a crayon, and he still tries to use these, make them empty!
 		t = replacetext(t, "\[*\]", "")
 		t = replacetext(t, "\[hr\]", "")
@@ -272,7 +272,7 @@
 		t = replacetext(t, "\[cell\]", "")
 		t = replacetext(t, "\[logo\]", "")
 
-		t = "<font face=\"[crayonfont]\" color=[P ? P.pen_colour : "black"]><b>[t]</b></font>"
+		t = "<font face=\"[crayonfont]\" color=[P ? P.pen_color : "black"]><b>[t]</b></font>"
 
 // t = replacetext(t, "#", "") // Junk converted to nothing!