Code:
public void interface() {
RSInterface main = addInterface(47289);
final int STARTING_POINT = 47290;
addSpriteLoader(STARTING_POINT, 1570);
addText(STARTING_POINT+1, "Party Setup", ColorConstants.ORANGE, false, true, 52, tda, 2);
addText(STARTING_POINT+2, "Difficulty", ColorConstants.ORANGE, false, true, 52, tda, 2);
addRectangle(STARTING_POINT+3, 100, 0x373128, true, 128, 26);
addRectangle(STARTING_POINT+4, 100, 0x2c2720, true, 128, 27);
addRectangle(STARTING_POINT+5, 100, 0x373128, true, 128, 27);
addConfigButtonWSpriteLoader(STARTING_POINT+6, 47288, 1335, 1336, 100, 20, "Easy", 0, 5, 1026);
addConfigButtonWSpriteLoader(STARTING_POINT+7, 47288, 1335, 1336, 100, 20, "Easy", 1, 5, 1026);
addConfigButtonWSpriteLoader(STARTING_POINT+8, 47288, 1335, 1336, 100, 20, "Easy", 2, 5, 1026);
addText(STARTING_POINT+9, "Easy", ColorConstants.ORANGE, false, true, 52, tda, 0);
addText(STARTING_POINT+10, "Medium", ColorConstants.ORANGE, false, true, 52, tda, 0);
addText(STARTING_POINT+11, "Hard", ColorConstants.ORANGE, false, true, 52, tda, 0);
addPet(STARTING_POINT + 12, 5);
addText(STARTING_POINT+13, "Members", ColorConstants.ORANGE, false, true, 52, tda, 2);
itemGroupAutoScroll(STARTING_POINT+ 14, STARTING_POINT+15, 65, 1, 17, 5, 10, new String[] { null, null, null, null, null }, false );
addText(STARTING_POINT+16, "Member #1", ColorConstants.ORANGE, false, true, 52, tda, 0);
addText(STARTING_POINT+17, "Member #2", ColorConstants.ORANGE, false, true, 52, tda, 0);
addText(STARTING_POINT+18, "Member #3", ColorConstants.ORANGE, false, true, 52, tda, 0);
addText(STARTING_POINT+19, "Member #4", ColorConstants.ORANGE, false, true, 52, tda, 0);
addHoverButtonWSpriteLoader(STARTING_POINT+20, 1575, 205, 35, "Start", -1, STARTING_POINT+21, 1);
addHoveredImageWSpriteLoader(STARTING_POINT+21, 1576, 205, 35, STARTING_POINT+22);
addHoverButtonWSpriteLoader(STARTING_POINT+23, 1573, 100, 35, "Create/Invite", -1, STARTING_POINT+24, 1);
addHoveredImageWSpriteLoader(STARTING_POINT+24, 1574, 100, 35, STARTING_POINT+25);
addHoverButtonWSpriteLoader(STARTING_POINT+26, 1573, 100, 35, "Remove/Leave", -1, STARTING_POINT+27, 1);
addHoveredImageWSpriteLoader(STARTING_POINT+27, 1574, 100, 35, STARTING_POINT+28);
addText(STARTING_POINT+29, "Start Fight!", ColorConstants.ORANGE, false, true, 52, tda, 3);
addText(STARTING_POINT+30, "Create/Invite", ColorConstants.ORANGE, false, true, 52, tda, 3);
addText(STARTING_POINT+31, "Remove/Leave", ColorConstants.ORANGE, false, true, 52, tda, 3);
addHoverButtonWSpriteLoader(STARTING_POINT+32, 1434, 15, 20, "Close", -1, STARTING_POINT+33, 1);
addHoveredImageWSpriteLoader(STARTING_POINT+33, 1435, 15, 20, STARTING_POINT+34);
main.totalChildren(30);
main.child(0, STARTING_POINT, 6, 15);
main.child(1, STARTING_POINT+1, 215, 24);
main.child(2, STARTING_POINT+2, 50, 56);
main.child(3, STARTING_POINT+3, 18, 77);
main.child(4, STARTING_POINT+4, 18, 103);
main.child(5, STARTING_POINT+5, 18, 130);
main.child(6, STARTING_POINT+6, 20, 83);
main.child(7, STARTING_POINT+7, 20, 109);
main.child(8, STARTING_POINT+8, 20, 136);
main.child(9, STARTING_POINT+9, 45, 83);
main.child(10, STARTING_POINT+10, 45, 109);
main.child(11, STARTING_POINT+11, 45, 136);
main.child(12, STARTING_POINT+12, 185, 60);
main.child(13, STARTING_POINT+13, 400, 58);
main.child(14, STARTING_POINT+14, 20, 168);
main.child(15, STARTING_POINT+16, 400, 81);
main.child(16, STARTING_POINT+17, 400, 96);
main.child(17, STARTING_POINT+18, 400, 111);
main.child(18, STARTING_POINT+19, 400, 127);
main.child(19, STARTING_POINT+20, 154, 208);
main.child(20, STARTING_POINT+21, 154, 208);
main.child(21, STARTING_POINT+23, 27, 208);
main.child(22, STARTING_POINT+24, 27, 208);
main.child(23, STARTING_POINT+26, 385, 208);
main.child(24, STARTING_POINT+27, 385, 208);
main.child(25, STARTING_POINT+29, 217, 213);
main.child(26, STARTING_POINT+30, 32, 213);
main.child(27, STARTING_POINT+31, 385, 213);
main.child(28, STARTING_POINT+32, 480, 24);
main.child(29, STARTING_POINT+33, 480, 24);
}