Help, can't get custom color working.

[K4R7IK]

Hey, so I want to edit some colors in the default color scheme.
Here is my alpha.lua file inside ~/.config/wezterm/colors/ folder.

local wezterm = require("wezterm")
local custom = wezterm.color.get_builtin_schemes()["HorizonDark (Gogh)"]
custom.background = "#0d1117"

return {
	color_schemes = {
		["Github-Alpha"] = custom,
	},
	color_scheme = "Github-Alpha",
}

Also, I added this in .wezterm.lua.

---
config.color_scheme = "Github-ALpha"
---

But it doesn't seem to work. What have I done wrong?

[K4R7IK]

-- Colorscheme
local custom = wezterm.color.get_builtin_schemes()["HorizonDark (Gogh)"]
custom.background = "#0d1117"
config.color_schemes = {
	["Alpha-Custom"] = custom,
}
config.color_scheme = "Alpha-Custom"

Forgot to post the answer. Here is the code if any else faces this issue in future.