Customizations not working

[ryanraposo]

Without a pre-existing entry for "workbench.colorCustomizations" in the user's settings.json file (VS Code settings), all customization functionality breaks:

This is a pretty serious bug, I'm not sure when it was introduced.

A temporary workaround is to add the empty entry ("workbench.colorCustomizations" : {}) manually, as pictured above.

However, keep in mind the different versions of settings.json. CodeUI has features for workspace-specific customization, and in that scenario you would have to add the entry to that particular settings.json file (.vscode/settings.json).