[FR] Customized the dialog style on mobile

[hyj1204]

Description

Give the ability to change the dialog style on mobile. For example,

• dialog background color
• dialog title text style
• dialog text field decoration
• 'Remove link' button color
• 'Done' button color

Impact

Give more flexibility to the dialog appearance

Additional Context

No response

[hyj1204]

The problem has not been resolved yet. I intend to do it after the release of the edit link dialogue, as we can gather feedback from developers to determine which parts they may interested to customize.