Add change color & font feature in setting

[ScottCTD]

In this case, you should merge the commit into the main branch.

You can hit the edit button and change the base branch to the main branch.

@eevadai

[Lei-Tin]

I haven't reviewed the whole Pull Request yet, but some initial comments:

• As we have already merged Charlotte's Branch into main, you should change your merge branch into main, as Scott has identified earlier.
• For commit messages, try to use [+], [-], [*], to denote addition of features, removal of features, and modification of features respectively. Holding the convention may help us refactor our code later on in the process.
• When starting a Pull Request, try to write some descriptions so that the other team members can easily understand what features you implemented. Also, the description can be used to include information that you believe we need to know. (E.g. Some special bugs that you have no clue how to deal with)
• Please do not include .DS_Store within your commit. This is an absolutely useless file generated by MacOS that keeps your desktop icons in their location. You can choose not to include them in your IDE, which keeps our project clean.

[Lei-Tin]

Closing this pull request as it is duplicated with this pull request.