diff --git a/public/img/org-baai@2x-80.jpg b/public/img/org-baai@2x-80.jpg
index 9cefbcfb0..91d4aa144 100644
Binary files a/public/img/org-baai@2x-80.jpg and b/public/img/org-baai@2x-80.jpg differ
diff --git a/public/img/org-engineclub@2x-80.jpg b/public/img/org-engineclub@2x-80.jpg
index 3e81173d3..3561a6ef3 100644
Binary files a/public/img/org-engineclub@2x-80.jpg and b/public/img/org-engineclub@2x-80.jpg differ
diff --git a/public/img/org-modelzoo@2x-80.jpg b/public/img/org-modelzoo@2x-80.jpg
index da48266c5..b9b731c11 100644
Binary files a/public/img/org-modelzoo@2x-80.jpg and b/public/img/org-modelzoo@2x-80.jpg differ
diff --git a/public/img/org-openi@2x-80.jpg b/public/img/org-openi@2x-80.jpg
index 3e0f8b6fe..6022f01f9 100644
Binary files a/public/img/org-openi@2x-80.jpg and b/public/img/org-openi@2x-80.jpg differ
diff --git a/public/img/org-platform@2x-80.jpg b/public/img/org-platform@2x-80.jpg
index 809bd9edb..db1c0d457 100644
Binary files a/public/img/org-platform@2x-80.jpg and b/public/img/org-platform@2x-80.jpg differ
diff --git a/public/img/org-tensorlayer@2x-80.jpg b/public/img/org-tensorlayer@2x-80.jpg
index d82eda72d..5b842ccb5 100644
Binary files a/public/img/org-tensorlayer@2x-80.jpg and b/public/img/org-tensorlayer@2x-80.jpg differ
diff --git a/routers/home.go b/routers/home.go
index dcaba8d19..a1c07e317 100755
--- a/routers/home.go
+++ b/routers/home.go
@@ -143,8 +143,8 @@ func RenderRepoSearch(ctx *context.Context, opts *RepoSearchOptions) {
orderBy = models.SearchOrderByActive
default:
- ctx.Data["SortType"] = "recentupdate"
- orderBy = models.SearchOrderByRecentUpdated
+ ctx.Data["SortType"] = "hot"
+ orderBy = models.SearchOrderByHot
}
//todo:support other topics
diff --git a/templates/explore/repo_left.tmpl b/templates/explore/repo_left.tmpl
index b9ff2ef20..af32851c0 100755
--- a/templates/explore/repo_left.tmpl
+++ b/templates/explore/repo_left.tmpl
@@ -1,79 +1,72 @@
-
-
-