Adding Spacing to WP Text Widget, and Other Small Items

I’m currently building my wordpress site with the “talian” theme ( https://sportscaranalytics.com/ ) and I’m having trouble figuring out how to do what should be three very simple things:

1) Adding spacing or padding to the WordPress Text widgets I’m currently using for my Adsense adds in both sidebars. Text sample is below:

<script type=”text/javascript”><!–
go ogle_ad_client = “”;
google_ad_width = 200;
google_ad_height = 200;
google_ad_format = “200x200_as”;
google_ad_type = “text_image”;
google_ad_channel =””;
google_color_border = “ffffff”;
google_color_bg = “ffffff”;
google_color_link = “333333”;
google_color_text = “333333”;
google_color_url = “80856B”;
//–></script>
<script type=”text/javascript”
src=”https://pagead2.googlesyndication.com/pagead/show_ads.js”&gt;
</script>

2) I can’t figure out how to change the “Blogroll” title in the left sidebar to display “Links” instead.

3) I want to change the RSS “News Feed” title’s font color to white and remove he underline.

Thank you for your help!