diff --git a/Mi/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java b/Mi/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
index 96a9ff8..a674d7a 100644
--- a/Mi/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
+++ b/Mi/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
@@ -430,7 +430,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
         if (id == R.id.btn_set_bg_color) {
             mNoteBgColorSelector.setVisibility(View.VISIBLE);
             findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
-                    -                    View.VISIBLE);
+                    View.VISIBLE);
         } else if (sBgSelectorBtnsMap.containsKey(id)) {
             findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
                     View.GONE);
diff --git a/doc/~$$软件需求模型.~vsdx b/doc/~$$软件需求模型.~vsdx
new file mode 100644
index 0000000..21fceb1
Binary files /dev/null and b/doc/~$$软件需求模型.~vsdx differ
diff --git a/doc/~$代码质量分析报告模板.docx b/doc/~$代码质量分析报告模板.docx
new file mode 100644
index 0000000..7483e69
Binary files /dev/null and b/doc/~$代码质量分析报告模板.docx differ
diff --git a/doc/~WRL3697.tmp b/doc/~WRL3697.tmp
new file mode 100644
index 0000000..91cc84a
Binary files /dev/null and b/doc/~WRL3697.tmp differ
diff --git a/doc/开源代码质量分析报告模板.docx b/doc/开源代码质量分析报告模板.docx
index 473179f..1bfab26 100644
Binary files a/doc/开源代码质量分析报告模板.docx and b/doc/开源代码质量分析报告模板.docx differ
diff --git a/doc/软件需求模型.vsdx b/doc/软件需求模型.vsdx
index c5acba6..4f66556 100644
Binary files a/doc/软件需求模型.vsdx and b/doc/软件需求模型.vsdx differ