Invalid JSON data when changing start menu icon

[anventia]

I added the following to the bottom of my config JSON:

  "controlStyles[20].target": "Taskbar.ExperienceToggleButton#LaunchListButton[AutomationProperties.AutomationId=StartButton] > Taskbar.TaskListButtonPanel > Border#BackgroundElement",
  "controlStyles[20].styles[0]": "Background:=<ImageBrush Stretch="Uniform" ImageSource="<https://cdn-icons-png.flaticon.com/512/7554/7554093.png>" />",
  "controlStyles[21].target": "Taskbar.ExperienceToggleButton#LaunchListButton[AutomationProperties.AutomationId=StartButton] > Taskbar.TaskListButtonPanel > Microsoft.UI.Xaml.Controls.AnimatedVisualPlayer#Icon",
  "controlStyles[21].styles[0]": "Visibility=Collapsed"

however I get "Invalid JSON data" error when trying to save it in Windhawk.
Does anyone know why?

[bbmaster123]

without seeing the rest, its most likely because styles have to be in sequential order. if your previous style was for example controlStyles[16].target, the next one would need to be controlStyles[17].target

One other thing to watch out for is to make sure each line, except the very last one, ends with a comma

[anventia]

Yeah, previously, the last one as 19, so I added this to the end as 20 and 21. I also made sure to add the comma to the previous last line that didn't have one, and my new last line doesn't have the comma.

[m417z]

One hint is that GitHub colors parts of the JSON you posted in red. Quotes inside strings must be escaped - each quote must turn into \".

You can also use one of the online JSON validators.

Generally, the JSON wasn't designed to be modified by hand. It was designed to backup and share mod settings. Why not use the settings UI instead?

[bbmaster123]

ah of course, good catch
Yes, that style in JSON should be:
"controlStyles[20].styles[0]": "Background:=<ImageBrush Stretch=\"Uniform\" ImageSource=\"<https://cdn-icons-png.flaticon.com/512/7554/7554093.png>\" />",