Fix macOS bud that causes tooltip to have white text on a white background in dark mode

Author: Natuworkguy

engine/gui/tooltip.py

@@ -66,15 +66,14 @@ def _show(self) -> None:
         x = self.widget.winfo_rootx() + 20
         y = self.widget.winfo_rooty() + self.widget.winfo_height() + 5
 
-        self.tip_window = tk.Toplevel(self.widget)
+        self.tip_window = tk.Toplevel(self.widget, class_="Tooltip")
         self.tip_window.wm_overrideredirect(True)
         self.tip_window.wm_geometry(f"+{x}+{y}")
 
         label = tk.Label(
             self.tip_window,
             text=self.text,
             justify="left",
-            background="#f0f0f0",
             relief="solid",
             borderwidth=1,
             padx=6,

engine/tcl/theme.tcl

@@ -9,6 +9,14 @@ dict set ui_color selected_background #0078D7
 dict set ui_color text                #333333
 dict set ui_color selected_foreground #FFFFFF
 
+if {[tk windowingsystem] eq "aqua"} {
+    dict set ui_color tooltip_background systemWindowBackgroundColor
+    dict set ui_color tooltip_foreground systemTextColor
+} else {
+    dict set ui_color tooltip_background #F0F0F0
+    dict set ui_color tooltip_foreground [dict get $ui_color text]
+}
+
 option add *selectedBackground      [dict get $ui_color selected_background]
 option add *selectedForeground      [dict get $ui_color selected_foreground]
 
@@ -19,3 +27,6 @@ option add *Entry.Font              [dict get $font default]
 option add *LabelFrame.Font         [dict get $font small]
 
 option add *LabelFrame.relief       solid
+
+option add *Tooltip*background      [dict get $ui_color tooltip_background]
+option add *Tooltip*foreground      [dict get $ui_color tooltip_foreground]