[Feature Request]: Improve color palettes

[tomtomme]

Still relevant with jasp 0.19.1 beta

Description

• Show the actual colors of color palettes in the drop down - instead of names AND/OR edit the names of color palettes so that they mean something (like color blind, not like viridis)
• Add more palettes AND/OR let the user add custom color palettes
• Let the user edit the color of all kinds of plots without resorting to svg or pptx-export

Purpose

to see beforehand, what you are selecting & to have more appropriate palettes for heat maps etc.

Use-case

seeing the color in the drop down is better for non-technical users that do not know color palette names like ggplot2 or viridis; for heat maps a color palett from blue over white to red is often a good choice

Is your feature request related to a problem?

selecting the right palette is hard atm and they are not many

Is your feature request related to a JASP module?

All 4 descriptives modules

Context

• R-Package to include more palettes https://github.com/mtennekes/cols4all
• relevant 2023 paper on the new color palettes in R since 4.0 https://www.zeileis.org/news/coloring/