Power BI Default Theme

Hight Contrast version of theme has been published.

It may be useful.

https://community.powerbi.com/t5/Themes-Gallery/Power-BI-Default-Theme-High-Contrast/m-p/140622

{
    "name": "default-high contrast",
    "dataColors": ["#00857B", "#374649", "#ED0903", "#8C7308", "#5F6B6D", "#1C81A1", "#D54401", "#A26294"],
    "background":"#FFFFFF",
    "foreground": "#374649",
    "tableAccent": "#00857B"
}