Price & Volume Heatmap

Description:
Displays a heatmap (like TV's Stock Heatmap) for up to 40 symbols (either from 3 presets, or custom). It can show Price Change, Volume Change and Volume (in $). The text size for each symbol can auto-change based on whether it fits into the cell. Each cell shows the name of the symbol, and when hovered - it shows the value.

Inputs:
- Symbols -> which symbols to use (Custom, or predefined list of Stocks/Crypto/Forex)
- Data -> show Price Change (%), Volume Change (%) or Volume ($)
- Custom -> put your custom list of symbols here (comma separated without spaces, up to 40 symbols)
- Position -> heatmap position
- Height / Width -> height / width of the heatmap (% of indicator's space)
- Text Size -> can be constant (Tiny/Normal/etc) or automatically change based on the text of each cell (Auto/Auto (Smaller))
- Color -> text color

Notes:
It is not recommended to use the script on timeframes below 30 seconds, because it may be too slow there (since it's based on a table object, it might be slow).