Постоянная SRGB_EXT

static const int SRGB_EXT = 0x8C40;

© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-web_gl/EXTsRgb/SRGB_EXT-constant.html