Add gtk styling

.config/gtk-3.0/gtk.css

@@ -0,0 +1,74 @@
+.background {
+  color: #ccc;
+  background-color: #111;
+}
+
+.view,
+iconview,
+.view text,
+iconview text,
+textview text {
+  color: #ccc;
+  background-color: #111;
+}
+
+.view:selected,
+iconview:selected,
+.view:selected:focus,
+iconview:selected:focus,
+.view text:selected,
+iconview text:selected,
+textview text:selected,
+.view text:selected:focus,
+iconview text:selected:focus,
+textview text:selected:focus {
+  background-color: #333;
+}
+
+label.separator,
+popover label.separator,
+popover.background label.separator {
+  color: #ccc;
+}
+
+label:disabled {
+  color: #555;
+}
+
+label selection {
+  color: #fff;
+}
+
+headerbar {
+  background: #111;
+}
+
+entry {
+  border: 1px solid red;
+}
+
+toolbar {
+  background: #111;
+  color: #ccc;
+}
+
+.top {
+  background: #111;
+  color: #ccc;
+}
+
+menu {
+  background: #111;
+  color: #ccc;
+}
+
+/* inactive tabs*/
+window.background.chromium menubar,
+window.background.chromium {
+  background-color: #111;
+  color: #ccc;
+}
+
+window.background.chromium textview.view {
+  background-color: transparent;
+}

.config/gtk-3.0/settings.ini

@@ -1,4 +1,5 @@
 [Settings]
+gtk-font-name=Inter 12
 gtk-application-prefer-dark-theme=true
 gtk-icon-theme-name=Adwaita
 gtk-theme-name=Adwaita