the gutter's background color can be changed by changing the overall background color of the theme, and then adding a rule for the "text" and "source" scopes in the theme's configuration file (.tmTheme file), effectively overriding the default background color and obtaining a different gutter background color, like this:
the gutter's background color can be changed by changing the overall background color of the theme, and then adding a rule for the "text" and "source" scopes in the theme's configuration file (.tmTheme file), effectively overriding the default background color and obtaining a different gutter background color, like this:
<key>background</key>
<string>#1e1e1e</string>
And then, add the following:
<dict>
<key>name</key>
<string>Source base background</string>
<key>scope</key>
<string>text, source</string>
<key>settings</key>
<dict>
<key>background</key>
<string>#222</string>
</dict>
</dict>