Vanilla means cheap, basic and plain. No customization only configuration changes UI related change such as change the color of application user message dialog mesages etc.This means that the product is used strictly in accordance with the way the product vendor intends it to be used
So Basically you can only configure the product using various parameters provided by the vendor as example you can add your parameters, region codes, user messages, dialog message, change print receipt format , logo changes etc you cannot change any functionality.
So Basically you can only configure the product using various parameters provided by the vendor as example you can add your parameters, region codes, user messages, dialog message, change print receipt format , logo changes etc you cannot change any functionality.