Not specifically looking to have this patched, but wanted to note it if anyone else starts having this problem and the solution I found:
After updating VSCode to the April 2022 release (v1.67) it has started colourizing brackets by default which is ugly af. It looks like the culprit is the editor.bracketPairColorization.enabled setting. When set, it does what it says and overwrites the theme's colour as seen below:

By disabling this setting the theme shows as it should:

Not specifically looking to have this patched, but wanted to note it if anyone else starts having this problem and the solution I found:
After updating VSCode to the April 2022 release (v1.67) it has started colourizing brackets by default which is ugly af. It looks like the culprit is the
editor.bracketPairColorization.enabledsetting. When set, it does what it says and overwrites the theme's colour as seen below:By disabling this setting the theme shows as it should: