REPORT-58698 主题切换-主题配置相关问题

【问题原因】
内置主题缩略图尺寸修改，以配合后续的主题预览界面优化

【改动思路】
同上

designer-base/src/main/java/com/fr/design/mainframe/theme/TemplateThemePreviewPane.java

@@ -41,17 +41,9 @@ public abstract class TemplateThemePreviewPane<T extends TemplateTheme> extends
 
         int thumbnailWidth = ThemeThumbnail.WIDTH;
         int thumbnailHeight = ThemeThumbnail.HEIGHT;
-        float thumbnailAspect = 1.0F * thumbnailWidth / thumbnailHeight;
 
         int width = getWidth();
         int height = getHeight();
-        float aspect = 1.0F * width / height;
-
-        if (thumbnailAspect > aspect) {
-            height = (int) (width / thumbnailAspect);
-        } else {
-            width = (int) (height * thumbnailAspect);
-        }
 
         try {
             // 使用TYPE_INT_RGB和new Color(255, 255, 255, 1)设置有透明背景buffer image,