Use better color schema for multiple geometry columns

[nyurik]

Is your feature request related to a problem? Please describe.
When query result has more than one geometry column in the spatial view, or if multiple geometry values are selected in the grid view, the first geometry is blue, followed by red, followed by orange. These colors are hard to tell apart, and there is no 4th color.

Describe the solution you'd like
Vega/d3, a long established visualization toolkit, uses categorical color schema, of which category10 is most commonly used. I think it would be great to use these colors for visualization.

Describe alternatives you've considered
do it in qgis. suffer.

Additional context

[E1izabeth]

Thank you for the idea. I'm closing it as a duplicate of #22750
You can vote for the mentioned issue with 👍 under the issue description to promote it to a higher priority.

[nyurik]

@E1izabeth thx for reviewing. I looked at #22750 but I do not think it is the same idea. There, user wants to be able to be able to control how visualization is done. My idea is much simpler -- dbeaver already has a list of colors it uses internally for each column. That list is hardcoded somewhere, and it should be fairly trivial to change it to use slightly more user-friendly color choices (i.e. accessibility issue). No customization is required.

[E1izabeth]

OK, let's keep both issues then