Upgrading to verison 13

As a registered Opus 12 user I have currently no Themes installed, but I adjusted color-settings in the Settings so that Opus look like I want.
If I now upgrade to Opus 13 will all these color-settings be still there, will they be included in a automagically created theme on install or will they be lost.

As you hear I don't have time and have no desire to put all these settings back in place.

They should all be converted across automatically, either as the dark or light settings depending on the actual colors. But make a backup of your configuration first just in case.