packages/secondary-window/README.md
The @theia/secondary-window extension contributes the extract command and toolbar item to move extractable widgets to secondary windows.
To mark a widget to be extractable, implement the ExtractableWidget interface from @theia/core.
For the extraction to work we require changes in upstream libraries.
Theia offers the theia-patch CLI command to apply these patches.
Recommendation: Execute theia-patch in the postinstall script of your root npm package to automatically apply the patches.
If the patches are not applied, the secondary window will show empty.
"Theia" is a trademark of the Eclipse Foundation https://www.eclipse.org/theia