My script is not changing stroke color, how do I fix this issue?

I was making a DarkRP game on Roblox which clearly isn't the most original idea, and when I wanted to make a halloween border thing for my GUI, it does not change color. This is what the code looks like:

local CurrentMonth = os.date("%m")

if CurrentMonth == 10 then
	script.Parent.Stroke.Color = Color3.fromRGB(255,155,0)
end

Extra notes:

1. The script does not throw any errors.
2. The script is in the Frame object holding the UIStroke object.

the issue your having is related to the CurrentMonth being a string, not a number.

you can simply fix this issue by calling the tonumber function on the CurrentMonth variable

tonumber changes a string '124' to a number 124 (keep in mind the function breaks if there is anything other than numbers in the string)

example:

local CurrentMonth = os.date("%m")
print(
	type(CurrentMonth) -- returns the type of the variable
)
--> 'string'

print(
	tonumber(CurrentMonth) -- returns the integer 
)
--> 10

print(
	type(
		tonumber(CurrentMonth) -- returns the integer 
	)
)
--> number

tostring changes any object into a type (stringified), although i wont go into any deeper explanation of this.

to fix your issue, you have to do one quick change:

local CurrentMonth = tonumber(os.date("%m"))

if CurrentMonth == 10 then
    script.Parent.Stroke.Color = Color3.fromRGB(255,155,0)
end

here is a resource linking to the developer API that can explain this ten times better than i have https://create.roblox.com/docs/scripting/luau/strings

hopefully this solves your problem :)