improvement: theming method in preact

[ajay28kumar]

How about using preact context API for handling themes in our app. For example, material-UI is providing a dynamic theme using Context API of ReactJS. source: https://material-ui.com/customization/theming/#createmuitheme-options-theme

[cromefire]

CC: @prateekbh

I don't know (p)react as well as you do