It would be nice to have autocomplete for defined workspace-variables when you edit launch.json
"cwd": "${fil|}", // autosuggest file, fileBasename, fileDirname etc
@maksimr I believe it is already supported, for example:

@vince-fugnitto hm... I have checked it doesn't work for me. I try to edit file .theia/launch.json

@vince-fugnitto hm... I have checked it doesn't work for me. I try to edit file
.theia/launch.json
@maksimr please note that gitpod is a product based on the theia framework and may be using older versions of the framework's extensions, and/or may not include the necessary builtin extensions to support launch configurations.
I confirmed it worked from the example-electron example present in the framework's sources (master).
@vince-fugnitto got it, thanks!
Closing since the issue is confirmed to work on master (@DukeNgn also confirmed for me).
@maksimr if not already done so, you may want to open the issue directly on gitpod.