The PowerShell ISE sports a zoom slider at its lower right edge, and you can control this slider with PowerShell code.
So you could set defaults for it in your $profile script:
$psise.Options.Zoom = 120
Or, write some code to keep your colleagues entertained:
#requires -Version 2 $zoom = $psise.Options.Zoom # slide in for ($i = 20 $i -lt 200 $i++) { $psise.Options.Zoom = $i } # slide out for ($i = 199 $i -gt 20 $i--) { $psise.Options.Zoom = $i } # random whacky 1..10 | ForEach-Object { $psise.Options.Zoom = (Get-Random -Minimum 30 -Maximum 400) Start-Sleep -Milliseconds (Get-Random -Minimum 100 -Maximum 400) } $psise.Options.Zoom = $zoom