Major step towards unification of the UI Implementation of the Back Feature, splitting of TUI files back into subfolders

TUI/Themes/theme_retro_terminal.py

@@ -0,0 +1,53 @@
+#    Copyright (C) 2025 James Brotosky, Brandon Wickline
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as published
+#    by the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+from textual.color import Color
+
+
+def get_retro_terminal_theme():
+    from textual.theme import Theme
+
+    return Theme(
+        name="retro-terminal",
+        background=Color.parse("#000000"),
+        primary=Color.parse("#00ff00"),
+        secondary=Color.parse("#00aa00"),
+        success=Color.parse("#00ff00"),
+        warning=Color.parse("#ffff00"),
+        error=Color.parse("#ff0000"),
+        surface=Color.parse("#071802"),
+    )
+
+
+RETRO_TERMINAL_CSS = """
+/* Retro terminal CRT effect */
+Screen {
+    align: center middle;
+    background: $background;
+    color: $text;
+}
+
+/* Blocky, pixelated widgets */
+.widget {
+    border: tall $primary;
+    background: $surface;
+    width: 80%;
+}
+
+/* Monospaced font */
+* {
+    font-family: "Courier New", monospace;
+}
+"""