diff --git a/content/kindle-apps-and-services/com.lab126.winmgr.md b/content/kindle-apps-and-services/com.lab126.winmgr.md
index e3ee688c..c54829e2 100644
--- a/content/kindle-apps-and-services/com.lab126.winmgr.md
+++ b/content/kindle-apps-and-services/com.lab126.winmgr.md
@@ -26,7 +26,7 @@ title: com.lab126.winmgr
 | logLevel                       | Str  | rw     | [Current log level=info(Possible transient levels: all, perf, debug[9-0], info, warn, error,crit, none)(Possible persistent levels: p_all, p_perf, p_debug[0-9], p_info, p_warn,p_error, p_crit, p_none)] | TODO        |
 | winmgrReady                    | Int  | r      | [1]                                                                                                                                                                                                       | TODO        |
 | fakeTap                        | Str  | w      |                                                                                                                                                                                                           | TODO        |
-| epdcMode                       | Str  | rw     | [Y8]                                                                                                                                                                                                      | TODO        |
+| epdcMode                       | Str  | rw     | [Y8], [Y8INV]                                                                                                                                                                                             | Set the Kindle's display to lightmode (`Y8`) or dark mode (`Y8INV`). Only works on Kindles that natively support dark mode.        |
 | debugInfo                      | Str  | rw     | []                                                                                                                                                                                                        | TODO        |
 | logMask                        | Str  | rw     | [0x0fff0000]                                                                                                                                                                                              | TODO        |
 | grip_enabled                   | Int  | rw     | [1]                                                                                                                                                                                                       | TODO        |