Here is a version of my Renko script but with percentage-based Renko brick sizes instead of ATR or static brick sizes. This way, you can add dependable alerts that won't need to be adjusted due to fluctuating ATR values but also allows you move through different charts without having to adjust your Renko Brick-sizes for each ticker.
To use: The Renko size setting defaults to ".001" or 10 basis points. So ".01" is 1 percent or 100 basis points. This Renko Script is perfect for those that trade in a strictly percentage based style (instead of price levels).
The yellow lines are where the next brick will be drawn.