Being the resident art teacher, I happen to know that the color yellow, which is the first color the eye registers, in small doses, can bring about a sense of happiness and/ or cheer.
On this oh so very cold, blustery, snow speckled day of late March–I had to find some yellow!!!!!
Use sparingly 🙂
(PS they are Meyer Lemons–an orange skin gives way to the deep yellow interior)
cookiecrumbstoliveby 
great photo! I love the vivid color of the oranges.
And Meyer lemons smell and taste sooooo lovely too.