YES!!!
I found a ready-to-use ThemeEngine app. So I am a step further now.
Now, I'm afraid I need something like "Finding all assets for Dummies".![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I found a ready-to-use ThemeEngine app. So I am a step further now.
Now, I'm afraid I need something like "Finding all assets for Dummies".