public?int?evaluate(float?fraction,?int?startValue,?int?endValue)?{
????int?startInt?=?(Integer)?startValue;
????float?startA?=?((startInt?>>?24)?&?0xff)?/?255.0f;
????float?startR?=?((startInt?>>?16)?&?0xff)?/?255.0f;
????float?startG?=?((startInt?>>??8)?&?0xff)?/?255.0f;
????float?startB?=?(?startInt????????&?0xff)?/?255.0f;

????int?endInt?=?(Integer)?endValue;
????float?endA?=?((endInt?>>?24)?&?0xff)?/?255.0f;
????float?endR?=?((endInt?>>?16)?&?0xff)?/?255.0f;
????float?endG?=?((endInt?>>??8)?&?0xff)?/?255.0f;
????float?endB?=?(?endInt????????&?0xff)?/?255.0f;

????//?convert?from?sRGB?to?linear
????startR?=?(float)?Math.pow(startR,?2.2);
????startG?=?(float)?Math.pow(startG,?2.2);
????startB?=?(float)?Math.pow(startB,?2.2);

????endR?=?(float)?Math.pow(endR,?2.2);
????endG?=?(float)?Math.pow(endG,?2.2);
????endB?=?(float)?Math.pow(endB,?2.2);

????//?compute?the?interpolated?color?in?linear?space
????float?a?=?startA?+?fraction?*?(endA?-?startA);
????float?r?=?startR?+?fraction?*?(endR?-?startR);
????float?g?=?startG?+?fraction?*?(endG?-?startG);
????float?b?=?startB?+?fraction?*?(endB?-?startB);

????//?convert?back?to?sRGB?in?the?[0..255]?range
????a?=?a?*?255.0f;
????r?=?(float)?Math.pow(r,?1.0?/?2.2)?*?255.0f;
????g?=?(float)?Math.pow(g,?1.0?/?2.2)?*?255.0f;
????b?=?(float)?Math.pow(b,?1.0?/?2.2)?*?255.0f;

????return?Math.round(a)?<<?24?|?Math.round(r)?<<?16?|?Math.round(g)?<<?8?|?Math.round(b);
}