Feature Proposal: Support Regex for File Icon Matching

[jannabiforever]

I’d like to suggest adding support for regex (or wildcard pattern) matching when assigning file icons in Zed.

Why?

In many real-world projects, we often use structured file naming conventions, such as:

• Dockerfile.dev, Dockerfile.prod

• .env.local, .env.production

• tsconfig.build.json, tsconfig.test.json

Currently, each of these needs to be explicitly defined to associate a file icon. But if Zed could support something like:

{
  "icon_rules": [
    {
      "pattern": "Dockerfile(\\..+)?",
      "icon": "docker"
    },
    {
      "pattern": "\\.env(\\..+)?",
      "icon": "env"
    }
  ]
}

It would make icon configuration far more scalable and expressive.