Updated Customize UI (markdown)

Customize-UI.md

@@ -278,6 +278,33 @@ These work on windows created with ShowUi / ShowMirror, as well as built-in over
 
 A showcase of this can be found on the `kbd` button in [watch.yaml](https://github.com/galister/wlx-overlay-s/blob/f4b10f825e010ef48c2e9573343385328a32ea6c/src/res/watch.yaml#L26).
 
+#### SendOscValue
+This requires WlxOverlay-S to be built with the `osc` feature, which is enabled by default.
+
+Sends an arbitrary OSC parameter to the `osc_out_port` set in the config file (default: `9000`). Values can be any of the following types: `Bool`, `Float`, `Int`, `String`, and multiple values can be sent to the same parameter at once.
+
+**Set a VRChat [avatar parameter](https://docs.vrchat.com/docs/osc-avatar-parameters#avatar-parameters--config-files) `VRCEmote` to `2`:**
+```yaml
+      - type: SendOscValue
+        parameter: "/avatar/parameters/VRCEmote"
+        values:
+          - type: Int
+            value: 2
+```
+
+**Send a message to VRChat's [chatbox](https://docs.vrchat.com/docs/osc-as-input-controller#chatbox):**
+```yaml
+      - type: SendOscValue
+        parameter: "/chatbox/input"
+        values:
+          - type: String
+            value: "OSC chatbox text"  # text to send
+          - type: Bool
+            value: True  # send immediately without opening the chatbox
+          - type: Bool
+            value: True  # play chatbox noise
+```
+
 #### Internal Use
 
 There are some types that are meant to be used internally, but feel free to use them, too. See: [ButtonData, ButtonAction](https://github.com/galister/wlx-overlay-s/blob/main/src/gui/modular/button.rs)