Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: I'm wearing yellow today to bring a little sunshine to this gloomy day #yourewelcome
This tweet contains emotions: 
joy, optimism, sadness