I have a very strange issue. After upgrading Flutter yesterday to the newest version, my syntax highlighting is awfully off. When I open a file, everything seems fine, but as soon as the file is analyzed and the result is used for highlighting, everything breaks.
Correct (for 1-2 seconds after opening the file):

Wrong (after around 2 seconds):

I am using the Monokai Theme for VsCode. I would love to get my old coloring back, as I think the new scheme is outrageously difficult to look at.
My Flutter Doctor outpu (All versions etc.):
[flutter] flutter doctor -v
[√] Flutter (Channel stable, 2.0.3, on Microsoft Windows [Version 10.0.19042.867], locale en-NZ)
• Flutter version 2.0.3 at R:\Programme\Flutter
• Framework revision 4d7946a68d (3 days ago), 2021-03-18 17:24:33 -0700
• Engine revision 3459eb2436
• Dart version 2.12.2
[√] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
• Android SDK at R:\Programme\Android\sdk
• Platform android-30, build-tools 30.0.2
• Java binary at: R:\Programme\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
[√] Android Studio (version 4.0)
• Android Studio at R:\Programme\Android\Android Studio
• Flutter plugin version 48.1.2
• Dart plugin version 193.7361
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
[√] IntelliJ IDEA Ultimate Edition (version 2020.3)
• IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA 2019.2.2
• Flutter plugin can be installed from:
https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
https://plugins.jetbrains.com/plugin/6351-dart
[√] VS Code, 64-bit edition (version 1.54.3)
• VS Code at C:\Program Files\Microsoft VS Code
• Flutter extension version 3.20.0
[√] Connected device (2 available)
• Chrome (web) • chrome • web-javascript • Google Chrome 89.0.4389.90
• Edge (web) • edge • web-javascript • Microsoft Edge 89.0.774.57
• No issues found!
exit code 0
Any help would be greatly appreciated :)