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+# Summary
+
+* [Related EPIC](#related-epic)
+* [Definition](#definition)
+* [Screenshots](#screenshots)
+* [Misc](#misc)
+
+## Related EPIC
+
+https://github.com/linagora/tmail-flutter/issues/1638
+
+## Definition
+### UC1. View label list in the left panel
+- Given that I am a Tmail user and I have logged in successfully
+- On the left panel, I can see a new category: Label
+- Under this category, I can see list of label that I have created:
+   - Each label contain a tag icon with color, and label’s name
+- If currently there is no label, there will be a text: No label under category’s name
+
+![image](https://user-images.githubusercontent.com/68209176/226865639-544eb439-a3a4-4d7c-9401-4d3ea026d8f8.png)
+
+![image](https://user-images.githubusercontent.com/68209176/226865809-ee148cc0-8ea5-4f8d-8023-b963e5112ea4.png)
+
+
+#### UC2. Create a new label
+- Next to category “Label” in the left panel, I can see a Create button
+- I click on this button, there will be a popup displayed. I need to fill in:
+   - Field “Name: Input label’s name. This is mandatory field and the max length of label name is as same as max length of mailbox’s name
+- Color: I can select a color for the label from a  color palette. Default is no color.
+- After inputting  name and selecting the color for the new label, I click button Save, the system will validate: 
+   - If the field “Name’ is blank, there will be an error message: “This field is required.”
+   - If there is existing label with the same name, there will be an toast message: “ A label with this name already exists”
+- If there is no error, new label will be created and it appears in label list in left panel with selected color.
+
+
+![image](https://user-images.githubusercontent.com/68209176/226866143-e99884e7-db1e-46e6-918b-b1b539e7cea0.png)
+
+![image](https://user-images.githubusercontent.com/68209176/226866188-a40d43d6-460f-4972-85be-114b69ceb9d7.png)
+
+![image](https://user-images.githubusercontent.com/68209176/227886707-d7319f9d-4d0e-4ed1-a834-9ef9a19320d7.png)
+
+
+
+#### UC3. Edit a label 
+- I click on three-dot button of a label in left panel, a list of actions is shown: Open in new tab, Edit and Delete
+- I select Edit, the popup of label will be displayed:
+- The popup is as same as popup when I create the label
+- Name of label is displayed but I cannot edit this name
+- I can only select another color for this label then click button Save
+- The new color is update for the label and all the messages that have this label will be updated with new color too.
+
+![image](https://user-images.githubusercontent.com/68209176/227483148-6d3edee7-7b10-4248-a12c-724bbc4c5a14.png)
+
+
+![image](https://user-images.githubusercontent.com/68209176/226866412-3d5aca75-e290-4bb4-a8b5-676577571ef0.png)
+
+
+
+
+[Back to Summary](#summary)
+
+## Screenshots
+
+None
+
+[Back to Summary](#summary)
+
+## Misc
+
+None
+
+[Back to Summary](#summary)