GS CurveTools was just update to the version 1.3.9.
Mostly bug fixes.
Improvements:
- PNG with alpha in the RGB channel is now supported for color mode.
- Improved tooltips parsing.
Bug fixes:
- Fixed an error that prevented color mode from being enabled in some cases.
- Improved error handling in color mode toggle.
- Fixed an issue with unselectable curves when using Apply Curve Colors or Sync Curve Color to Layer Color.
- Fixed gray color overlay on some menus in Curve Control Window.