Because I don't know the specific name of your comprehensive supermarket chain, I can only give you a more popular logo, as follows:

Supermarket header can be based on the following picture to design:

Based on the requirements that you provide, the following is a preliminary design program for a chain of supermarkets:

1. Comprehensive, small and comprehensive: the supermarket should provide A variety of merchandise categories, including food, daily necessities, household goods, electronic products and so on. Ensure a wide variety of goods to meet the needs of different customers.

2. Urban small fresh, external sense of permeability: the use of bright lighting systems and spacious spatial layout, so that the entire supermarket visually gives a sense of ease and permeability. You can use fresh tones and modern decorative styles, such as the use of light-colored walls, bright lights, transparent glass walls, etc., so that customers feel comfortable and pleasant.

3. Coffee and simple food location: set up a cafe and simple food area in the supermarket, which is convenient for customers to take a rest, gather or dine after shopping. Provide high-quality coffee and snacks to create a comfortable leisure atmosphere for customers.

4. Pollution-free and organic franchise features: In order to highlight the characteristics of pollution-free and organic franchise, you can set up a special area to display and sell pollution-free and organic food, vegetables, fruits and so on. Relevant information and publicity can also be provided to enable customers to understand the advantages of pollution-free and organic products.

In addition, the following elements can be considered:

- Setting up a self-checkout or cell phone code payment system to enhance customers' shopping experience and efficiency.

- Setting up shelves and display areas in supermarkets to make it easier for customers to view and select products.

- Provide comfortable shopping carts and baskets for customers to carry their goods.

- Arrange sufficient parking spaces to ensure easy parking for customers.

- Setting up promotional and special offer areas to attract customers to buy and boost the sales of the supermarket.

These are just the preliminary design plans, the specific details need to be further planned and adjusted according to the specific site, target customer groups and brand positioning.

I hope my answer is helpful to you~