All organic material will decompose. Some things are more practical than others for composting. Adapt your composting system to meet your needs and to fit your lifestyle. Nitrogen sources are not always green in color. This is to prevent animals from being attracted to your pile.
Moisture is an important element in the composting process.
Ideally, the compost pile should be damp to the touch. Brown materials tend to be dry, therefore, it is beneficial to add water when adding browns. Green material contains a lot of moisture and usually do not require additional water when adding it to the pile. You may want to check the pile periodically to determine if water should be added. If the pile is too dry, it will slow down the decomposition process.