Color Preview in VSCode is fooled when using custom classes ending with "Colors".

[HosseinYousefi]

Describe the bug
If the name of the class finishes with Colors, VSCode shows a preview as if the class name was Colors. (see the screenshot)

To Reproduce
You can use this code:

import 'dart:ui';

class MyColors {
  static const red = Color(0xff00ff00);
}

class NoColorHere {
  static const red = Color(0xff00ff00);
}

void somefunction() {
  final someOtherColor = NoColorHere.red;
  final someColor = MyColors.red;
}

Expected behavior
Preferably it should show the actual color in all cases, but a quick fix could be to not show the color preview when the class is not "Colors".

Screenshots

Versions (please complete the following information):

• VS Code version: 1.49.3
• Dart extension version: 3.15.0
• Dart/Flutter SDK version: 2.8.4/Flutter 1.17.5

[DanTup]

I'll fix this to only allow Colors, though I don't think we can make this completely reliably (some colours may not be known statically, and you could also create your own Colors class too). In the future this may move into the server (with LSP), so perhaps it will be easier to make it more reliable there (that's #2167).