Candle

Tap to blow out the candle; tap again to light it.

A candle is a stick of wax with a string, the wick, down the middle. The flame's heat melts the wax, the melted wax soaks up the wick, and near the flame it turns into a gas, which is what really burns. The blue part at the bottom burns with plenty of air; the yellow above is tiny bits of soot glowing hot.

This candle starts lit. Tap it to blow it out, and a thin trail of smoke rises from the wick; tap again to light it. A flame is shaped like a teardrop because its hot gases rise; in space, where nothing rises, a candle flame is a round, blue ball. You can pick the wax color in the Splash tab.

Made in Splashery. Its code is MIT.