Is your feature request related to a problem? An enhancement: to give the possibility to choose a color palette from a dropdown menu.

There are too many predefined palettes at [https://plotly.com/python/builtin-colorscales/](https://plotly.com/python/builtin-colorscales/, and the menu would become too long), so a dozen should be enough.

As a palette list I would consider:

• Viridis
• Magma
• Turbo
• Bluered
• Hot
• RdBu
• YlOrRd
• Thermal
• Agsunset
• Balance
• Portland
• Edge

If the dropdown menu shows the palette colors (each image can be downloaded from the page) together with the name, it becomes very intuitive.

Is your feature request related to a problem? I am using Histograms, but the number of bins is automatic and cannot be changed. Other plot types can be optimized by adding extra parameters (i.e. to change the size of scatterplots' markers).

Describe the solution you'd like Of course it is not possible to add parameters according to every users' needs.

The easiest solution is to give the possibility to enter extra params into an edit box such as:

This string can be transformed into a dictionary with eval(f'dict({ edit_box_content })'), and the dictionary then added to the plots' parameters.

As for the title, it is not possible to directly select the (unnamed) index among the X axis fields. Index is the most obvious choice for Y axis in Scatter, Line, etc.

In Scatter, Line, Bar (and possibly other plots) it would be nice to visualize multiple series on the same figure. This would mean to select not only a single Y axis value, but to allow multiple selections (at least one).

To keep things simple, I would draw all of them on the same figure, avoiding at the moment to provide sub figures.