When a user selects a different color on the product page, I want to open that specific product in that selected color directly instead of just changing the featured image. This Plugin is doing exactly the same thing, selecting a color changes the product URL. So if I have a product A in black and red colors and on the product page user selects a red color, I want to open the product link. I just need little guidance, which function I should refer to or which hooks are useable. I used to modify some free plugins but they contain a lot of code which I don't even need, I know just a couple of lines are needed to code this so I want to avoid using any plugin.