[Bug]: Rider 2024.3.5 - Not saving settings

[kamronbatman]

Describe the bug

After configuring Material UI and restarting Rider, the theme settings were not saved.

To Reproduce

1. Select a theme, I did Material Deep Ocean.
2. Restart Rider
3. UI is not Material Deep Ocean

Expected behavior

Selected theme should persist.

Material Theme Version

v9.7.0

IDE

Rider

System Info

JetBrains Rider 2024.3.5
Build #RD-243.24978.27, built on February 6, 2025

Runtime version: 21.0.5+8-b631.30 amd64 (JCEF 122.1.9)
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Toolkit: sun.awt.windows.WToolkit
Windows 11.0
.NET Core v8.0.11 x64 (Server GC)
GC: G1 Young Generation, G1 Concurrent GC, G1 Old Generation
Memory: 4096M
Cores: 24
Registry:
  ide.balloon.shadow.size=0
  ide.new.editor.tabs.vertical.borders=true
  ide.animate.toolwindows=true
  ide.experimental.ui=true
  ide.editor.tab.selection.animation=true
  llm.show.ai.promotion.window.on.start=false
Non-Bundled Plugins:
  com.intellij.javafx (1.0.4)
  com.intellij.resharper.HeapAllocationsViewer (2024.3.0)
  com.kagof.pokeprogress (2.1.1)
  avalonia-rider (1.5.2.225)
  String Manipulation (9.15.0)
  com.intellij.resharper.StructuredLogging (2024.3.0.353)
  com.intellij.plugin.adernov.powershell (2.8.0)
  com.dethlex.numberconverter (2.1.1)
  com.chrisrm.idea.MaterialThemeUI (9.7.0)
  com.github.copilot (1.5.32-242)
  com.mallowigi (101.2.0)
  mobi.hsz.idea.gitignore (4.5.6)
  izhangzhihao.rainbow.brackets (2024.2.8-241)

Logs/Screenshots

[cconard96]

I've seen the same issue with PHPStorm.
PhpStorm 2024.3.1.1
Material Theme UI 9.7.0

[WhosLogan]

Current issue with WebStorm 2024.3.2.1 as well.

Removing the Material UI configuration file seems to have fixed the issue.

[kamronbatman]

How do you do that?

[WhosLogan]

• Go into your JetBrains config path for the IDE you're using, see here
• You can then find file(s) called something along the lines of "material_theme.xml"
• Delete those and see if your issue is fixed

[kamronbatman]

• Go into your JetBrains config path for the IDE you're using, see here
• You can then find file(s) called something along the lines of "material_theme.xml"
• Delete those and see if your issue is fixed

Thank you! Works perfectly.