1. Changed the maximum site width of the WordPress theme to 1680 px, as shown in Figure 1.

2. Viewing the thumbnail on the homepage, its original size was 720 * 340 px. It has now been scaled up to 1020 * 360 px, making it insufficiently clear, as shown in Figure 2.

3. The image URL is https://media.shuijingwanwq.com/2020/01/1-8-720×340.png, and its size is 720 * 340 px. Therefore, an image with a size of 1320×500 px should be used, as shown in Figure 3.

4. Regenerate Thumbnails for the featured image. At this point, the image URL is https://media.shuijingwanwq.com/2020/01/1-8-1320×481.png, as shown in Figure 4.

5. In the theme editor, edit the file: /wp-content/themes/hueman/content-featured.php. Change the value of col-3cm from thumb-large to thumb-xxlarge. Note: After each theme upgrade, you need to repeat the edit to update this file, as shown in Figure 5.

$map = array(
'col-1c' => 'thumb-xxlarge',
'col-2cl' => 'thumb-xlarge',
'col-2cr' => 'thumb-xlarge',
'col-3cm' => 'thumb-xxlarge',
'col-3cl' => 'thumb-large',
'col-3cr' => 'thumb-large'
);
6. Viewing the thumbnail on the homepage, the image URL is https://media.shuijingwanwq.com/2020/01/1-8-1320×481.png. Its original size is 1320 * 481 px, and it has now been scaled down to 1020 * 371.67 px, making it sufficiently clear and meeting expectations, as shown in Figure 6.

7. Note: Step 4 can be ignored, as there is no need to manually generate the corresponding thumbnails. Images of the corresponding specifications will be automatically generated after the image is uploaded, as shown in Figure 7.

