Issue #24820: Add 'IDLE Dark' text color theme, warning, and solution.
diff --git a/Lib/idlelib/config-highlight.def b/Lib/idlelib/config-highlight.def
index 7d20f78..4146e28 100644
--- a/Lib/idlelib/config-highlight.def
+++ b/Lib/idlelib/config-highlight.def
@@ -62,3 +62,32 @@
stderr-background= #ffffff
console-foreground= #770000
console-background= #ffffff
+
+[IDLE Dark]
+comment-foreground = #dd0000
+console-foreground = #ff4d4d
+error-foreground = #FFFFFF
+hilite-background = #7e7e7e
+string-foreground = #02ff02
+stderr-background = #002240
+stderr-foreground = #ffb3b3
+console-background = #002240
+hit-background = #fbfbfb
+string-background = #002240
+normal-background = #002240
+hilite-foreground = #FFFFFF
+keyword-foreground = #ff8000
+error-background = #c86464
+keyword-background = #002240
+builtin-background = #002240
+break-background = #808000
+builtin-foreground = #ff00ff
+definition-foreground = #5e5eff
+stdout-foreground = #c2d1fa
+definition-background = #002240
+normal-foreground = #FFFFFF
+cursor-foreground = #ffffff
+stdout-background = #002240
+hit-foreground = #002240
+comment-background = #002240
+break-foreground = #FFFFFF