Tessera

Appearance

T1010: Theme extends the wrong base ​

Cause ​

A theme file must say which base it overrides with "$extends", and that must be the base token set.

Example ​

text
// base.tokens.json
{
  "primary": {
    "$type": "color",
    "$value": {
      "colorSpace": "srgb",
      "components": [
        0,
        0,
        0
      ]
    }
  }
}

// dark.tokens.json
{}

What you see ​

text
ERROR  T1010  dark.tokens.json
  Theme "dark" must declare "$extends": "base".
  Run `tessera explain T1010` for details.

Fix ​

Add "$extends": "base" (or the name of your base set) to the theme file.

All errors and warnings