[HM] HORIZONTAL GRID ROUNDED (VOLATILITY BASED)

The purpose of this indicator is to draw a horizontal grid having in mind:

- rounded price levels instead tradingview standard grid, zoom-based;
- calculated by volatility, using daily ATR;
- independent of timeframe in use, locked to DAILY calculations.

Further improvements are intended.
Wish this could be useful. Any questions, feel free to comment.

הערות שחרור:

8 levels, from previous 4 levels

הערות שחרור:

release notes: added option to change line colors (white/black), suggested by user "nursefit26".