Allow colour overrides

[Chaitanyabsprip]

Please add a lua api to override custom colors. I know we can always do hi! ... but it would be neat if I could do it using api native to the plugin.

[mvllow]

Do you have an example of another theme doing this? Seems a little out of scope for a theme but willing to reconsider

[Chaitanyabsprip]

vim.g.tokyonight_colors = {border = "#7aa2f7", bg = "#262C3A"}

tokyonight allows overriding colors this way. Moreover simplifies it so that the user don't have to see what highlight group they have to use, its just nicely wrapped behind generic, self explanatory terms like border, bg, etc.

[mvllow]

Ah that makes sense, appreciate the example. I'll look into adding this soon 😌

[mvllow]

This is now supported for a few groups. Feel free to PR more 😌