This time we’re going bigger than ever. Fabric, Power BI, SQL, AI and more. We're covering it all. You won't want to miss it.
Learn moreDid you hear? There's a new SQL AI Developer certification (DP-800). Start preparing now and be one of the first to get certified. Register now
Does anyone have a working json file that updates the font and font size? The defaults are horrific. I've tried the theme generator and example from curbal but neither actually work.
Hi @cdknuth,
Maybe you can refer to following link which told about custom theme elements.
Custom Report Theme JSON Property settings in Tables/Matrix
Regards,
Xiaoxin Sheng
Thanks, Xiaoxin. I've tried these formats and neither work.
{
"name":"Jan 2018 Theme",
"dataColors":
[
"#0069aa",
"#4f8dc2",
"#9ab7da",
"#cedaec",
"#00c762",
"#fbe7a6",
"#ff544a",
"#f89a1c",
"#545451"
],
"background":"#FFFFFF",
"foreground":"#545451",
"tableAccent":"#4f8dc2",
"visualStyles":{
"*":{
"*": {
"*": {[ "fontFamily":"Segoe UI"]}
}
}
}
}
{
"name":"Jan 2018 Theme",
"dataColors":
[
"#0069aa",
"#4f8dc2",
"#9ab7da",
"#cedaec",
"#00c762",
"#fbe7a6",
"#ff544a",
"#f89a1c",
"#545451"
],
"background":"#FFFFFF",
"foreground":"#545451",
"tableAccent":"#4f8dc2",
"visualStyles":{
"*":{
"*": {
"*": [{ "fontFamily":"Segoe UI"}]
}
}
}
}
HI @cdknuth,
You can try to use below json formula and replace bold part with a valid font name.
{
"name":"Jan 2018 Theme",
"dataColors":[
"#0069aa",
"#4f8dc2",
"#9ab7da",
"#cedaec",
"#00c762",
"#fbe7a6",
"#ff544a",
"#f89a1c",
"#545451"
],
"background":"#FFFFFF",
"foreground":"#545451",
"tableAccent":"#4f8dc2",
"visualStyles":{
"*":{
"*":{
"*":[
{
"fontFamily":"Segoe UI"
}
]
}
}
}
}
Regards,
Xiaoxin Sheng
Thanks for the attempt, but this still doesn't work for me. Perhaps I need a newer version.
HI @cdknuth,
Maybe you can try to use below json file, I package code and confirm it works on my side.
Regards,
Xiaoxin Sheng
Check out the April 2026 Power BI update to learn about new features.
If you have recently started exploring Fabric, we'd love to hear how it's going. Your feedback can help with product improvements.
A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.
| User | Count |
|---|---|
| 38 | |
| 38 | |
| 31 | |
| 22 | |
| 15 |
| User | Count |
|---|---|
| 74 | |
| 61 | |
| 31 | |
| 31 | |
| 23 |