Click the matrix cell in row 2 and column 2, then click the drop-down button appearing on the right side of the cell. Select "picture label" from the label type dropdown menu to set the label type as picture label. The parameters area appears at the bottom of the Matrix Label Thematic Map window, where you can configure image parameters:

• Image Path: In the combo box to the right of the "picture path:" label, select field Path_1. This field stores weather icons for capitals and provincial capitals on a specific day. For example, if Beijing's weather shows thunderstorms turning sunny, the icon contained in Path_1 will be the thunderstorm weather icon.
• Picture Size：Customize the width and height of the picture, or maintain its original dimensions. Here, check the "keep original size" checkbox to preserve the image's native dimensions.