Polygon:

- Added async methods to polygon.
- The `requests` library is no longer required, with `urllib` being used instead.
- Added the `get_bar_data` function, which returns a dataframe of aggregate data from polygon.
- Opened up the `subscribe` and `unsubscribe` functions

Enhancements:
- Tables will now scroll when the rows exceed table height.

Bugs:
- Fixed a bug preventing async functions being used with horizontal line event.
- Fixed a bug causing the legend to show duplicate lines if the line was created after the legend.
- Fixed a bug causing the line hide icon to persist within the legend after deletion (#75)
- Fixed a bug causing the search box to be unfocused when the chart is loaded.

docs/source/reference/toolbox.md

@@ -0,0 +1,62 @@
+# `ToolBox`
+
+`````{py:class} ToolBox
+
+The Toolbox allows for trendlines, ray lines and horizontal lines to be drawn and edited directly on the chart.
+
+It can be used within any Chart object, and is enabled by setting the `toolbox` parameter to `True` upon Chart declaration.
+
+The following hotkeys can also be used when the Toolbox is enabled:
+
+| Key Cmd            | Action  |
+|---                 |---        |
+| `alt T`             |  Trendline |
+| `alt H`           |  Horizontal Line |
+| `alt R`             |  Ray Line  |
+| `⌘ Z` or `ctrl Z`  |  Undo |
+
+Right-clicking on a drawing will open a context menu, allowing for color selection and deletion.
+___
+
+
+
+````{py:method} save_drawings_under(widget: Widget)
+
+Saves drawings under a specific `topbar` text widget. For example:
+
+```python
+chart.toolbox.save_drawings_under(chart.topbar['symbol'])
+```
+
+````
+___
+
+
+
+```{py:method} load_drawings(tag: str)
+
+Loads and displays drawings stored under the tag given.
+```
+___
+
+
+
+```{py:method} import_drawings(file_path: str)
+
+Imports the drawings stored at the JSON file given in `file_path`.
+
+```
+___
+
+
+
+```{py:method} export_drawings(file_path: str)
+
+Exports all currently saved drawings to the JSON file given in `file_path`.
+
+```
+
+`````
+
+
+