Stage 2 Trend Signals (10/21/50/200)

*Trend-following indicator designed to focus on **strong Stage 2 uptrends**, not bottom-fishing or chop.
* Plots **10 EMA, 21 EMA, 50 SMA, and 200 SMA** as core moving averages.
* Uses a **trend filter** so buy signals only occur when:

* Price is above the **50 SMA** (and optionally above the **200 SMA**), and
* The **50 SMA is above the 200 SMA**, reflecting classic Stage 2 alignment.
* Prints a **green “BUY” label** when the **10 EMA crosses above the 21 EMA** within this bullish environment, signaling momentum turning up in an established uptrend.
* Prints a **red “SELL” label** when the **10 EMA crosses below the 21 EMA** or when price is in a bearish context and closes below the 21 EMA, prompting risk reduction as trend/momentum weaken.
* Light **green background shading** highlights periods where the bullish Stage 2 conditions are active (“trend-on” zones).
* Works on **any timeframe**; commonly used on:

* **Weekly charts** for big-picture trend confirmation.
* **Daily charts** for swing entries, exits, and active trade management.