Theme Issues, Windows

[ritvij14]

Hello everyone, I built the code from CLI installation instructions. I have many issues with the default theme.
1.) The message text color is too light.
2.) Left pane showing the contacts in white and not the dark shade shown in the preview.
3.) Group name in the same color as background
4.) Chat messages are not in the color as expected.

Sorry if the red color is being a hindrance. It's just for protecting privacy. Please tell me if it is a problem and I will send a proper image.

Also, I am new to HTML, CSS, and JS and wanna learn more by doing. So if it is possible for me to contribute to some small issues I would love to do that.