SlimEnum - is the enum as we know it...

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SlimEnum - is the enum as we know it, a fat-free alternative to Java enums.. It was created as part of java source code, generated by the BlackBox. SlimEnum utilize annotations construction, but in contrast with Android  IntDef it fill annotation body with constants to provide required enum functionality over any, even primitive(byte,int..etc.), data types.
SlimEnum uses annotation declaration with defined constant in their body, as named constants set for certain type. Constants type is define to which type this constants set can be applied. SlimEnum can be nested.

  public @interface Font {
		@interface Foreground {
			int     BLACK = 0,
				RED = 1,
				GREEN = 2,
				YELLOW = 3,
				BLUE = 4,
				MAGENTA = 5,
				CYAN = 6,
				WHITE = 7,
				DEFAULT = 8;
		}
		
		@interface Background {
			int     BLACK = 0,
				RED = 1,
				GREEN = 2,
				YELLOW = 3,
				BLUE = 4,
				MAGENTA = 5,
				CYAN = 6,
				WHITE = 7,
				DEFAULT = 8,
				TRANSPARENT = 0;
		}
		
		byte    NORMAL = 0,
			BOLD = 1,
			UNDERLINE = 3,
			BLINK = 4,
			INVERSE = 5,
			STRIKE = 6;
		
		String  Helvetica = "Helvetica",
			Palatino = "Palatino",
			HonMincho = "HonMincho",
			Serif = "Serif",
			Monospaced = "Monospaced",
			Dialog = "Dialog";
	}

apply it to variables, fields, methods return type and method arguments

class Test {
	@Font String name;
	@Font.Foreground int fg;

	@Font.Background int setBackground(@Font.Background int bg) {
		return bg;
	}
}

static void createFont(@Font String name, @Font byte style, @Font.Background int background, @Font.Foreground int foregraund) {

}

and use it

createFont(Font.Monospaced + Font.HonMincho + Font.Serif, Font.BLINK, Font.Background.CYAN, Font.Foreground.BLACK);
		@Font String         name = Font.Dialog;
		@Font byte           type = Font.NORMAL | Font.BOLD | Font.INVERSE;
		@Font.Foreground int fg   = Font.Foreground.BLUE;
		
		Test test = new Test();
		test.setBackground(Font.Background.BLUE);
		test.fg = Font.Foreground.BLUE | Font.Foreground.CYAN | Font.Foreground.MAGENTA;
		
		test.fg = Font.Foreground.BLUE;
		
		if (type == (Font.NORMAL | Font.BOLD | Font.INVERSE | Font.BLINK) && test.setBackground(Font.Background.BLUE) == Font.Background.RED)
		{
			@Font.Foreground int fgw = 3;
		}
		assert (test.setBackground(Font.Background.BLUE) == (Font.Background.CYAN | Font.Background.DEFAULT));
		
		if (test.fg == Font.NORMAL && test.fg != Font.NORMAL) {
			
		}
		
		
		switch (test.setBackground(Font.Background.BLUE))
		{
			case Font.Background.BLUE:
				break;
			case Font.Background.CYAN:
				break;
			
		}

To bring support SlimEnum to the IDE and make using it easy and efficiently SlimEnum plugin for Android Studio / IDEA was created. It is available in the Intellij plugin repository.
SlimEnum plugin can recognize applied to variables annotation, data type, and provide correct constants set for the code completion.

Compile by yourself or just download SlimEnum.jar and install as plugin to the