problem solved
1. Give a name of rule like: “exception for windows blinds”
2. Source applications tab: “Add..” -> select file: “C:\Program Files (x86)\Stardock\WindowBlinds\WBCore.exe” (depending on where WindowsBlinds is installed)
3. Target applications tab: Allow operations all operations* -> choose target process as “C:\Windows\System32\winlogon.exe”
4. Save a rule, apply Style
No reboot required.
eset got transparent borders now too