public static void setColor(String red, String green, String blue) { Image3DUniverse univ = getUniv(); if (univ == null || univ.getSelected() == null) return; Content sel = univ.getSelected(); try { float r = getInt(red) / 256f; float g = getInt(green) / 256f; float b = getInt(blue) / 256f; if (univ != null && univ.getSelected() != null) { sel.setColor(new Color3f(r, g, b)); } } catch (NumberFormatException e) { sel.setColor(null); } }