Merge pull request #2594 from hntirgeam/feat/osd_framerate_hz_selector

Added osd_framerate_hz command option ins OSD tab

Author: sensei-hacker

locale/en/messages.json

@@ -3773,6 +3773,12 @@
     "osd_home_position_arm_screen": {
         "message": "Home Position on Arming Screen"
     },
+    "osd_framerate_hz": {
+        "message": "OSD Framerate (Hz)"
+    },
+    "osd_framerate_hz_help": {
+        "message": "Target refresh rate for OSD elements in Hz. Each element is redrawn at approximately this rate. Values above 10 Hz provide no visible improvement for typical flight data but increase CPU load. Artificial horizon and telemetry are always updated every cycle regardless of this setting. Set to -1 for legacy behavior (one element per frame)."
+    },
     "osd_hud_settings": {
         "message": "Heads-up Display settings"
     },

tabs/osd.html

@@ -122,6 +122,11 @@ <h1 class="tab_title" data-i18n="tabOSD"></h1>
                                 <input type="checkbox" class="toggle update_preview" data-setting="osd_home_position_arm_screen" data-live="true">
                                 <span data-i18n="osd_home_position_arm_screen"></span>
                             </label>
+                            <div for="osd_framerate_hz" class="helpicon cf_tip" data-i18n_title="osd_framerate_hz_help"></div>
+                            <label for="osd_framerate_hz">
+                                <select id="osd_framerate_hz" data-setting="osd_framerate_hz" data-live="true"></select>
+                                <span data-i18n="osd_framerate_hz"></span>
+                            </label>
                         </div>
                     </div>
                 </div>