You can use addThemeProps() to add a theme layer on top e.g. this guy used it to increase font size:
https://stackoverflow.com/questions/48851909/codename-one-modify-a-font-size-in-a-theme-like-in-an-hashtable Color is even simpler as its just a HEX RGB string e.g. "ffffff" so you can code it as HashMap themeLayer = new HashMap(); themeLayer.put("MyComponent.bgColor", "cccccc"); UIManager.getInstance().addThemeProps(themeLayer); form.refreshTheme(); -- 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/8d978b97-ebca-4f31-9fe9-9c41a12e9c40%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.