add palettes configuration key

lua/rose-pine/config.lua

@@ -40,6 +40,7 @@ local M = {}
 ---@field disable_background boolean
 ---@field disable_float_background boolean
 ---@field disable_italics boolean
+---@field palettes table<table>
 ---@field groups Groups
 ---@field highlight_groups table<string, any>
 local defaults = {
@@ -52,6 +53,8 @@ local defaults = {
 	disable_italics = false,
 	highlight_groups = {},
 
+	palettes = {},
+
 	groups = {
 		background = 'base',
 		background_nc = '_experimental_nc',

lua/rose-pine/palette.lua

@@ -60,6 +60,8 @@ local variants = {
 	},
 }
 
+variants = vim.tbl_deep_extend('force', variants, options.palettes)
+
 if options.variant == 'main' then
 	return variants.main
 end

readme.md

@@ -65,6 +65,17 @@ require('rose-pine').setup({
 	disable_float_background = false,
 	disable_italics = false,
 
+    --- @usage palette tables with hex values
+    palettes = {
+        main = {
+            -- You can change an existing color
+            -- base = '#242424',
+
+            -- Or create a new one
+            -- custom = '#FF0000',
+        },
+    }
+
 	--- @usage string hex value or named color from rosepinetheme.com/palette
 	groups = {
 		background = 'base',