After days (it seemed like weeks) of rain, the sun finally came out again, and heavy jackets and rain coats were stowed once again in hall closets. It truly felt like spring was here on the Vineyard. The best indication of spring's arrival is color: the white flowers of pear trees along Circuit avenue in Oak Bluffs, the drifts of bright yellow buttercups in Island meadows, the purple of lilacs, and the vibrant emerald green of lawns and farm fields from Aquinnah to Chappaquiddick.