newIDE/app/public/external/piskel/README.md
This folder contains sources to embed the Piskel editor (https://www.piskelapp.com/) so that it can be used directly from GDevelop to edit images.
GD uses an updated version of piskel from https://github.com/GDevelopApp/piskel on master branch.
It contains a number of advanced color manipulation features and improvements to aid artists.
Piskel sources are downloaded by import-zipped-editor.js script. They are raw, unchanged sources
of the Piskel editor build. Sources will be stored in the piskel-editor folder.
See piskel-main.js for the code running the editor.
See LocalExternalEditorWindow.js, LocalResourceExternalEditors.js and BrowserResourceExternalEditors.js files for the bridge that opens the Window and passes data from GDevelop to Piskel.