The welcome message is defined in the welcome.json file in the src/plugins/space/welcome directory.
It is in the Slack Blocks format, and you can build your own/modify this one in the Slack Block Kit Builder.
To add import the welcome.json message into the Slack Block Kit Builder:
- Copy the entire json file into the text area beneath the 'blocks' json object
{
"blocks": "Paste your json here"
}- This will render the message and show any errors on the webpage
- Modify it as you see fit
- Copy the json back into the
welcome.jsonfile, remembering to remove the outerblocksobject, leaving just the json array.