When applying for trademark registration, the main differences between specifying colors and not specifying colors are trademark patterns, color requirements and use requirements.

1. Trademark pattern: Common trademarks with specified colors include elements such as words or graphics, which are combined with colors. There is no such requirement for trademark designs that do not specify colors.

2. Color requirements: A common trademark with a specified color can only contain one color, and a color trademark must contain more than two colors. Registration cannot protect a single color. In addition, trademarks that do not specify colors do not legally prohibit the use of colors in actual use, but they do not protect colors. Therefore, if a trademark with a specific color is registered or changed, it is an act of changing the registered trademark by itself, and the administrative department for industry and commerce needs to order it to make corrections within a time limit or even revoke the registered trademark.

3. Requirements for use: Ordinary trademarks with specified colors shall be consistent with the actual use at the time of registration and shall not be changed at will. There is no such restriction on color trademarks, which is related to the shape of goods when using color trademarks.

To sum up, ordinary trademarks with specified colors contain specific elements such as words or graphics, which can be a single color. There is no such requirement for trademarks that do not specify colors, but the trademark pattern can be fixed or varied, depending on the specific application of the trademark.