What details should I pay attention to when customizing a T-shirt?

T-shirts are not only fashionable, but also very versatile. They can be customized into corporate culture shirts or class uniforms. Many schools or groups design their own T-shirts, so what details should be paid attention to when customizing T-shirts?
Firstly, when designing a T-shirt, it is important to be clear which printing process to use to complete different printing processes, which reflect different ready-to-wear effects.
Secondly, when designing T-shirts, it is important to avoid particularly large color blocks. Large color blocks should not be placed on the chest, as this can easily cause the printing area to be airtight.
Thirdly, when designing T-shirts, especially for printing, it is important to avoid using too many colors. Generally, two colors are better, and the more colors, the higher the cost.
Fourthly, if the T-shirt designer chooses screen printing, remember not to use gradient colors, otherwise the printed product will have a significant difference from the design drawings.
Fifth, when designing a T-shirt, the color and fabric must be well matched. Light colored fabrics should be printed with dark colors, while dark colored fabrics should be printed with light colors.
Sixth, when designing T-shirts, the printing position should be taken into consideration, usually in three positions: the front, back, and cuffs. Try to avoid printing at the seams, otherwise it may not print well.