added GTK3 and GTK4 config

.config/gtk-3.0/gtk.css

@@ -0,0 +1,26 @@
+flowbox,
+revealer,
+window,
+toolbarview,
+AdwNavigationPane,
+window,
+AdwToolbarView {
+    background-color: rgb(30, 30, 46);
+    /* opacity: 0.9; */
+}
+
+window {
+    border-radius: 3px;
+    background-color: rgb(30, 30, 46);
+}
+
+popover contents,
+popover arrow {
+    background-color: #303446;
+}
+
+popover modelbutton:hover {
+    background-color: rgba(0, 178, 255, 0.25);
+    transition-property: background-color;
+    transition-duration: 0.3s;
+}

.config/gtk-3.0/settings.ini

@@ -0,0 +1,20 @@
+[Settings]
+gtk-theme-name=adw-gtk3-dark
+gtk-icon-theme-name=la-capitaine
+gtk-font-name="Product Sans 11"
+gtk-cursor-theme-name=Bibata-Modern-Ice
+gtk-cursor-theme-size=24
+gtk-toolbar-style=GTK_TOOLBAR_BOTH_HORIZ
+gtk-toolbar-icon-size=GTK_ICON_SIZE_LARGE_TOOLBAR
+gtk-button-images=1
+gtk-menu-images=1
+gtk-enable-event-sounds=1
+gtk-enable-input-feedback-sounds=0
+gtk-xft-antialias=1
+gtk-xft-hinting=1
+gtk-xft-hintstyle=hintslight
+gtk-xft-rgba=rgb
+gtk-enable-animations=1
+gtk-primary-button-warps-slider=false
+gtk-decoration-layout=menu:
+gtk-can-change-accels=1

.config/gtk-4.0/gtk.css

@@ -0,0 +1,35 @@
+toolbarview, 
+AdwNavigationPane,
+window,
+AdwToolbarView  { 
+	background-color: rgb(30, 30, 46);
+}
+
+window {
+    border-radius: 3px; 
+	background-color: rgb(30, 30, 46);
+    opacity: 0.9;
+}
+
+
+popover contents, popover arrow {
+	background-color: #303446;
+
+}
+
+overlay-split-view widget:nth-child(3) toolbarview {
+	border-right: 1px solid #3A3D4D;
+
+}
+
+placessidebar,
+overlay-split-view widget:nth-child(3) toolbarview
+  {
+	background-color: rgba(40, 40, 56, 1);
+}
+
+/* popover modelbutton:hover { */
+/*     background-color: rgba(0, 178, 255, 0.25); */       
+/* 	transition-property: background-color; */
+/* 	transition-duration: 0.3s; */ 
+/* } */

.config/gtk-4.0/settings.ini

@@ -0,0 +1,12 @@
+[Settings]
+gtk-theme-name=adw-gtk3-dark
+gtk-cursor-theme-name=Bibata-Modern-Ice
+gtk-font-name="Product Sans 11"
+gtk-cursor-theme-size=24
+gtk-enable-animations=true
+gtk-primary-button-warps-slider=false
+gtk-icon-theme-name=la-capitaine
+gtk-xft-antialias=1
+gtk-xft-hinting=1
+gtk-xft-hintstyle=hintmedium
+gtk-xft-rgba=rgb