issue: change the default colour

[Neel7780]

The default colour in the colour picker is set to black, which overlaps with the background colour, so change it to white for better user experience.

[Shadow-MMN]

Hey bro can I take this issue, I will change the css variable of the default colour to white and if there is no css variable created , I will make one so that changing the default colour in the future won't be much of an issue.