Hi,
>> if it is possible to make the background color transparent
>> without changing the hatch as well
No, you can't define different transparent values for the hatch lines and the hatch background.
I would suggest to create 2 hatches, one with pattern "SOLID" and your transparency value and a second with lines or what ever you have a primary hatch.
As hatches are able to follow the base geometry (if associative is on) you should not have issues when the geometry gets modified, you only need to make sure that the draworder is updated so the solid hatch is behind your line hatch.
- alfred -
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Alfred NESWADBA
ISH-Solutions GmbH / Ingenieur Studio HOLLAUS
www.ish-solutions.at ...
blog.ish-solutions.at ...
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CDay 2026------------------------------------------------------------------------------------
(not an Autodesk consultant)