All UIID's exist. You will get the default UIID value when you use something that doesn't exist. Since the default value (which you can edit in the designer) is transparent the form is transparent and you get problematic behavior.
We could check for transparent forms but this might be a problem as there are cases where this is legal e.g. when embedding forms, in dialogs or if you implement your own bg painter. The blue line at the top is the Toolbar or TitleArea UIID if you set it to background transparency 0 and Border = Empty in the designer it will disappear. It's there because we have a different UIID above it called StatusBar which takes up 2mm to make room for the clock/battery/notch symbols in iOS. I'm not sure why the styles aren't showing up correctly, Steve would have to answer that one as it's a relatively new feature. -- You received this message because you are subscribed to the Google Groups "CodenameOne Discussions" group. To unsubscribe from this group and stop receiving emails from it, send an email to codenameone-discussions+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/codenameone-discussions. To view this discussion on the web visit https://groups.google.com/d/msgid/codenameone-discussions/9d73366c-aa47-4e1a-abfc-224cb7c093d0%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.