diff --git a/HyperDRM.manifest.json b/HyperDRM.manifest.json
index 239de8a..e940cd2 100644
--- a/HyperDRM.manifest.json
+++ b/HyperDRM.manifest.json
@@ -1,15 +1,15 @@
 {
   "id": "org.webosbrew.histogramhyperion",
-  "version": "0.13.3",
+  "version": "0.13.4",
   "type": "web",
   "title": "HyperDRM",
   "appDescription": "Ambient lighting for webOS, Hyperion and HyperHDR",
   "iconUri": "https://gitea.adnau.de/matze19999/HyperDRM/raw/branch/main/app/icon.png",
   "sourceUrl": "https://gitea.adnau.de/matze19999/HyperDRM",
   "rootRequired": true,
-  "ipkUrl": "https://gitea.adnau.de/matze19999/HyperDRM/raw/branch/main/HyperDRM_0.13.3_arm.ipk",
+  "ipkUrl": "https://gitea.adnau.de/matze19999/HyperDRM/raw/branch/main/HyperDRM_0.13.4_arm.ipk",
   "ipkHash": {
-    "sha256": "acb0978100796e8765e586a91183599ef4eb783631d8b68205d716621790e232"
+    "sha256": "3028ea164e05ff6b9c601aa7f3ff0f05b17781ba603eaebe3395abae503f7bb7"
   },
-  "ipkSize": 1208120
+  "ipkSize": 1208554
 }
diff --git a/HyperDRM_0.13.3_arm.ipk b/HyperDRM_0.13.4_arm.ipk
similarity index 89%
rename from HyperDRM_0.13.3_arm.ipk
rename to HyperDRM_0.13.4_arm.ipk
index 25035b7..2c6d385 100644
Binary files a/HyperDRM_0.13.3_arm.ipk and b/HyperDRM_0.13.4_arm.ipk differ
diff --git a/README.md b/README.md
index faeb85f..732c8d4 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ Only the own service is modified. Optional Auto PicCap can configure its receive
 
 ## Installation
 
-The current package is [HyperDRM_0.13.3_arm.ipk](HyperDRM_0.13.3_arm.ipk). Install it using the TV's webOS/Homebrew package installation workflow.
+The current package is [HyperDRM_0.13.4_arm.ipk](HyperDRM_0.13.4_arm.ipk). Install it using the TV's webOS/Homebrew package installation workflow.
 
 Elevate the installed own service through Homebrew Channel:
 
@@ -237,3 +237,5 @@ tests do not replace real LG capture and remote-control validation on a TV.
 Histogram near-black handling suppresses colors with a maximum RGB channel of 16 or less, gradually restores brightness between 16 and 32, and preserves brighter colors. This applies only to histogram output; PicCap, receiver calibration and raw calibration samples are unchanged.
 
 Thin letterbox detection compares both edges against lit interior histogram samples and requires a consistently dark upper edge for at least two seconds. Histogram probes cannot determine the exact bar height or guarantee detection on every scene.
+
+Histogram capture defaults to 50 ms. The Receiver panel provides a saved Capture interval (ms) setting from 25 to 1000 in steps of 25. Existing settings without this field use 50 ms. PicCap capture timing is unchanged.
diff --git a/VERSION b/VERSION
index 288adf5..dffa40e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.13.3
+0.13.4
diff --git a/app/app.js b/app/app.js
index 4d6ee40..7d49f1c 100644
--- a/app/app.js
+++ b/app/app.js
@@ -125,6 +125,7 @@ function display(result) {
         document.getElementById('host').value = result.host;
         document.getElementById('port').value = result.port;
         document.getElementById('piccapPort').value = result.piccapPort || 19400;
+        document.getElementById('captureInterval').value = result.captureIntervalMs || 50;
         receiver = result.receiver;
         document.getElementById('receiver').textContent = 'Receiver: ' + receiver;
     }
@@ -298,7 +299,7 @@ document.getElementById('handover').onclick = function() {
         enabled: button.getAttribute('aria-checked') !== 'true'
     });
 };
-['host', 'port', 'piccapPort', 'token', 'clearToken'].forEach(function(id) {
+['host', 'port', 'piccapPort', 'captureInterval', 'token', 'clearToken'].forEach(function(id) {
     document.getElementById(id).addEventListener('input', function() {
         targetDirty = true;
     });
@@ -320,7 +321,13 @@ document.getElementById('saveTarget').onclick = function() {
         showActionError('PicCap FlatBuffer port must be an integer from 1 to 65535.');
         return;
     }
+    var interval = Number(document.getElementById('captureInterval').value);
+    if (!Number.isInteger(interval) || interval < 25 || interval > 1000 || interval % 25) {
+        showActionError('Capture interval must be 25–1000 ms in steps of 25.');
+        return;
+    }
     var settings = {
+        captureIntervalMs: interval,
         piccapPort: flatPort,
         host: document.getElementById('host').value.trim(),
         port: port,
@@ -393,6 +400,6 @@ document.getElementById('editProfile').onclick = function() {
     showProfile();
     if (advancedProfile) document.getElementById('customProfileField').focus();
 };
-setupRemoteNavigation(['overviewTab', 'receiverTab', 'calibrationTab', 'reloadService', 'grantRoot', 'start', 'stop', 'refresh', 'autostart', 'handover', 'calibrationShortcut', 'receiver', 'hostField', 'portField', 'piccapPortField', 'tokenField', 'clearToken', 'saveTarget', 'testConnection', 'calibrate', 'validateCalibration', 'profile', 'saveProfile', 'editProfile', 'customProfileField', 'cancelCalibration'].map(function(id) {
+setupRemoteNavigation(['overviewTab', 'receiverTab', 'calibrationTab', 'reloadService', 'grantRoot', 'start', 'stop', 'refresh', 'autostart', 'handover', 'calibrationShortcut', 'receiver', 'hostField', 'portField', 'piccapPortField', 'captureIntervalField', 'tokenField', 'clearToken', 'saveTarget', 'testConnection', 'calibrate', 'validateCalibration', 'profile', 'saveProfile', 'editProfile', 'customProfileField', 'cancelCalibration'].map(function(id) {
     return document.getElementById(id);
 }), document, window);
diff --git a/app/appinfo.json b/app/appinfo.json
index 1134cc0..c42e62d 100644
--- a/app/appinfo.json
+++ b/app/appinfo.json
@@ -1,6 +1,6 @@
 {
   "id": "org.webosbrew.histogramhyperion",
-  "version": "0.13.3",
+  "version": "0.13.4",
   "vendor": "Local development",
   "type": "web",
   "main": "index.html",
diff --git a/app/index.html b/app/index.html
index 049d5b8..1c2a7f8 100644
--- a/app/index.html
+++ b/app/index.html
@@ -38,11 +38,12 @@ nav{border-bottom:1px solid #456185;padding-bottom:10px;margin-bottom:18px}nav b
 <div id="hostField" class="field" tabindex="0" role="button" aria-label="IP address, press OK to edit"><label>IP address<input id="host" tabindex="-1" readonly type="text" maxlength="45" value="127.0.0.1" spellcheck="false"></label></div>
 <div id="portField" class="field narrow" tabindex="0" role="button" aria-label="JSON port, press OK to edit"><label>JSON port<input id="port" tabindex="-1" readonly type="number" min="1" max="65535" value="19444"></label></div>
 <div id="piccapPortField" class="field narrow" tabindex="0" role="button" aria-label="FlatBuffer port, press OK to edit"><label>PicCap FlatBuffer port<input id="piccapPort" tabindex="-1" readonly type="number" min="1" max="65535" value="19400"></label></div>
+<div id="captureIntervalField" class="field narrow" tabindex="0" role="button" aria-label="Capture interval in milliseconds, press OK to edit"><label>Capture interval (ms)<input id="captureInterval" tabindex="-1" readonly type="number" min="25" max="1000" step="25" value="50"></label></div>
 <div id="tokenField" class="field" tabindex="0" role="button" aria-label="API token, press OK to edit"><label>API token (optional)<input id="token" tabindex="-1" readonly type="password" maxlength="256" autocomplete="off"></label></div>
 </div>
 <label><input id="clearToken" type="checkbox"> Remove saved token</label>
 <div><button id="saveTarget" class="primary">Save receiver</button><button id="testConnection">Test connection</button></div><p id="testResult" role="status">Connection test: Not tested</p>
-<p><small>The JSON TCP port is usually 19444. Leave the token blank to keep the saved token. Saving updates the current session.</small></p>
+<p><small>The JSON TCP port is usually 19444. Leave the token blank to keep the saved token. Saving updates the current session. Histogram capture defaults to 50 ms; choose 25–1000 ms in steps of 25. Lower values reduce latency and increase TV load. PicCap uses its own capture rate.</small></p>
 <p id="piccapTargetHint"><small>Auto PicCap uses the same IP and its FlatBuffer port, usually 19400. Enable the receiver's FlatBuffer server. Remote IPv6 uses HyperDRM.</small></p></fieldset>
 </section>
 <section id="calibrationPanel" aria-label="TV calibration" style="display:none">
diff --git a/app/navigation.js b/app/navigation.js
index b4f7474..bd2c2f9 100644
--- a/app/navigation.js
+++ b/app/navigation.js
@@ -64,4 +64,4 @@ function setupFormEditors(ids, doc, win) {
         }
     });
 }
-setupFormEditors(['host', 'port', 'piccapPort', 'token', 'customProfile'], document, window);
+setupFormEditors(['host', 'port', 'piccapPort', 'captureInterval', 'token', 'customProfile'], document, window);
diff --git a/app/version.js b/app/version.js
index 82a0b94..bf7af99 100644
--- a/app/version.js
+++ b/app/version.js
@@ -1,2 +1,2 @@
 'use strict';
-var HYPERDRM_APP_VERSION = '0.13.3';
+var HYPERDRM_APP_VERSION = '0.13.4';
diff --git a/docs/release-0.13.4.md b/docs/release-0.13.4.md
new file mode 100644
index 0000000..72d1b84
--- /dev/null
+++ b/docs/release-0.13.4.md
@@ -0,0 +1,3 @@
+# HyperDRM 0.13.4
+
+Default histogram capture to 50 ms and expose a persisted Capture interval (ms) in the Receiver panel (25–1000, steps of 25). Remote highlighting leaves the keyboard closed; OK opens editing. A 25 ms scheduler keeps network processing responsive independently of slower capture settings. Missing legacy values default to 50 ms. PicCap timing is unchanged. Native tests check persistence, legacy defaults and invalid values.
diff --git a/native/capture_loop.h b/native/capture_loop.h
index 9c71b4a..f833d97 100644
--- a/native/capture_loop.h
+++ b/native/capture_loop.h
@@ -83,6 +83,8 @@ static int tick(void *unused) {
         capture_ctx.settling = 2;
         return 1;
     }
+    if (capture_ctx.sample_at && now - capture_ctx.sample_at < target_capture_interval(&target))
+        return 1;
     Histogram hist[16] = {0};
     int rc = vt_get(capture_ctx.handle, hist);
     bool populated = !rc && histogram_populated(hist);
diff --git a/native/service.c b/native/service.c
index dbfc50b..287071f 100644
--- a/native/service.c
+++ b/native/service.c
@@ -270,7 +270,7 @@ int main(void) {
     service_handle = handle;
     if (!boot_enabled())
         retry_pause(&retries);
-    timer(100, tick, NULL);
+    timer(25, tick, NULL);
     while (!quitting) {
         iterate(NULL, 0);
         usleep(10000);
diff --git a/native/service_status.h b/native/service_status.h
index cca9ad2..b829e1b 100644
--- a/native/service_status.h
+++ b/native/service_status.h
@@ -61,10 +61,10 @@ static bool status(void *h, void *m, void *ctx) {
                      CALIBRATION_ACTIVE ? "true" : "false");
     used +=
         snprintf(json + used, sizeof(json) - used,
-                 "\"returnValue\":true,\"piccapPort\":%u,\"connectionTest\":{\"state\":\"%s\","
+                 "\"returnValue\":true,\"captureIntervalMs\":%u,\"piccapPort\":%u,\"connectionTest\":{\"state\":\"%s\","
                  "\"ledCount\":%u,\"elapsedMs\":%llu,\"error\":\"%s\"},\"lastOutputAgeMs\":%"
                  "lld,\"retryInMs\":%llu,\"captureState\":\"%s\",\"piccapError\":\"%s\",",
-                 target.piccap_port, test_stage_name(), connection_test.leds,
+                 target_capture_interval(&target), target.piccap_port, test_stage_name(), connection_test.leds,
                  (unsigned long long)connection_test.elapsed, connection_test.error,
                  capture_ctx.last_output_at ? (long long)(now - capture_ctx.last_output_at) : -1,
                  (unsigned long long)(retries.due > now ? retries.due - now : 0),
diff --git a/native/target.h b/native/target.h
index 81783c2..8d7d8f9 100644
--- a/native/target.h
+++ b/native/target.h
@@ -15,10 +15,14 @@
     "/media/developer/apps/usr/palm/services/org.webosbrew.histogramhyperion.service/target.json"
 typedef struct {
     char host[46], receiver[16], token[257];
-    unsigned port, piccap_port;
+    unsigned port, piccap_port, capture_interval;
 } TargetConfig;
 static TargetConfig target = {
-    .host = "127.0.0.1", .receiver = "Hyperion", .port = 19444, .piccap_port = 19400};
+    .host = "127.0.0.1", .receiver = "Hyperion", .port = 19444, .piccap_port = 19400,
+    .capture_interval = 50};
+static inline unsigned target_capture_interval(const TargetConfig *t) {
+    return t->capture_interval ? t->capture_interval : 50;
+}
 static inline bool target_piccap_local(const TargetConfig *t) {
     return t->port == 19444 && (!strcmp(t->host, "127.0.0.1") || !strcmp(t->host, "::1"));
 }
@@ -31,6 +35,9 @@ static inline const char *target_piccap_host(const TargetConfig *t) {
 }
 static bool target_valid(const TargetConfig *t) {
     unsigned char address[16];
+    unsigned interval = target_capture_interval(t);
+    if (interval < 25 || interval > 1000 || interval % 25)
+        return false;
     if (inet_pton(AF_INET, t->host, address) != 1 && inet_pton(AF_INET6, t->host, address) != 1)
         return false;
     if (!t->piccap_port || t->piccap_port > 65535)
@@ -97,6 +104,20 @@ static bool target_parse(PlaybackJson *j, const char *text, TargetConfig *out) {
                 next.piccap_port = (unsigned)n;
         }
     }
+    void *interval = NULL;
+    if (j->type(root) == 4 && j->get(root, "captureIntervalMs", &interval)) {
+        if (j->type(interval) != 3)
+            valid = false;
+        else {
+            char *end = NULL;
+            errno = 0;
+            long n = strtol(j->string(interval), &end, 10);
+            if (errno || !end || *end || n < 25 || n > 1000 || n % 25)
+                valid = false;
+            else
+                next.capture_interval = (unsigned)n;
+        }
+    }
     void *clear = playback_field(j, root, "clearToken");
     if (clear) {
         if (j->type(clear) != 1)
@@ -116,8 +137,8 @@ static bool target_save(const char *path, const TargetConfig *t) {
     char data[512];
     int n = snprintf(
         data, sizeof(data),
-        "{\"host\":\"%s\",\"port\":%u,\"piccapPort\":%u,\"receiver\":\"%s\",\"token\":\"%s\"}\n",
-        t->host, t->port, t->piccap_port, t->receiver, t->token);
+        "{\"host\":\"%s\",\"port\":%u,\"piccapPort\":%u,\"receiver\":\"%s\",\"token\":\"%s\",\"captureIntervalMs\":%u}\n",
+        t->host, t->port, t->piccap_port, t->receiver, t->token, target_capture_interval(t));
     return n > 0 && (size_t)n < sizeof(data) &&
            atomic_replace(path, data, (size_t)n) != SAVE_UNCHANGED;
 }
diff --git a/native/test_blackbars.c b/native/test_blackbars.c
index a510adb..13fec2a 100644
--- a/native/test_blackbars.c
+++ b/native/test_blackbars.c
@@ -26,7 +26,7 @@ int main(void){
  assert(letterbox_candidate(thin_black,thin_color)==-1);
  memset(thin_color,100,sizeof(thin_color));
  assert(letterbox_candidate(thin_black,thin_color)!=1);
- memset(thin_black,15,sizeof(thin_black));
+ for(unsigned i=0;i<16;i++)thin_black[i]=15;
  assert(letterbox_candidate(thin_black,thin_color)!=1);
  puts("PASS: measured wide/thin bars, full frame, one-sided/isolated edges, dark frame and low contrast");
 }
diff --git a/native/test_target.c b/native/test_target.c
index 59de5e6..e726bad 100644
--- a/native/test_target.c
+++ b/native/test_target.c
@@ -24,8 +24,16 @@ int main(void){
  assert(!target_parse(&j,"{\"host\":\"127.0.0.1\",\"port\":19444,\"piccapPort\":null,\"receiver\":\"HyperHDR\"}",&t));
  TargetConfig v6=t;strcpy(v6.host,"2001:db8::1");assert(!target_piccap_compatible(&v6));strcpy(v6.host,"::1");assert(target_piccap_compatible(&v6) && !strcmp(target_piccap_host(&v6),"127.0.0.1"));
  const char *file="/tmp/hyperdrm-target-test.json";assert(access(file,F_OK)!=0);assert(access("/tmp/hyperdrm-target-test.json.tmp",F_OK)!=0);
+ assert(target_capture_interval(&t)==50);
+ assert(target_parse(&j,"{\"host\":\"::1\",\"port\":65535,\"receiver\":\"HyperHDR\",\"captureIntervalMs\":100}",&t));
+ assert(t.capture_interval==100);
+ const char *invalid_intervals[]={"0","24","26","1001","50.5","null","\"50\""};
+ for(unsigned i=0;i<sizeof(invalid_intervals)/sizeof(*invalid_intervals);i++){
+  char request[256];snprintf(request,sizeof(request),"{\"host\":\"::1\",\"port\":65535,\"receiver\":\"HyperHDR\",\"captureIntervalMs\":%s}",invalid_intervals[i]);
+  TargetConfig before=t;assert(!target_parse(&j,request,&t));assert(!memcmp(&before,&t,sizeof(t)));
+ }
  assert(target_save(file,&t));struct stat st;assert(stat(file,&st)==0 && (st.st_mode&0777)==0600);
- TargetConfig restored=target;assert(target_load(&j,file,&restored));assert(!strcmp(restored.host,"::1") && restored.port==65535 && !strcmp(restored.token,"test-token"));
+ TargetConfig restored=target;assert(target_load(&j,file,&restored));assert(restored.capture_interval==100);assert(!strcmp(restored.host,"::1") && restored.port==65535 && !strcmp(restored.token,"test-token"));
  assert(target_parse(&j,"{\"host\":\"127.0.0.1\",\"port\":19444,\"receiver\":\"HyperHDR\",\"clearToken\":true}",&t));assert(!t.token[0]);assert(target_piccap_local(&t));unlink(file);
  int server=socket(AF_INET,SOCK_STREAM,0);assert(server>=0);struct sockaddr_in a={.sin_family=AF_INET,.sin_addr={htonl(INADDR_LOOPBACK)}};
  assert(bind(server,(void*)&a,sizeof(a))==0 && listen(server,1)==0);socklen_t length=sizeof(a);assert(getsockname(server,(void*)&a,&length)==0);t.port=ntohs(a.sin_port);
diff --git a/native/version.h b/native/version.h
index 606126d..5918acc 100644
--- a/native/version.h
+++ b/native/version.h
@@ -1,4 +1,4 @@
 #ifndef HYPERDRM_VERSION_H
 #define HYPERDRM_VERSION_H
-#define HYPERDRM_VERSION "0.13.3"
+#define HYPERDRM_VERSION "0.13.4"
 #endif
diff --git a/package/packageinfo.json b/package/packageinfo.json
index cd94e1b..3d3a06c 100644
--- a/package/packageinfo.json
+++ b/package/packageinfo.json
@@ -1,6 +1,6 @@
 {
   "id": "org.webosbrew.histogramhyperion",
-  "version": "0.13.3",
+  "version": "0.13.4",
   "vendor": "Local development",
   "app": "org.webosbrew.histogramhyperion",
   "services": [
diff --git a/service/histogram-service b/service/histogram-service
index 64658f9..6c73c4c 100644
Binary files a/service/histogram-service and b/service/histogram-service differ
diff --git a/tests/form-navigation.test.js b/tests/form-navigation.test.js
index 0dc0ef3..b431077 100644
--- a/tests/form-navigation.test.js
+++ b/tests/form-navigation.test.js
@@ -7,7 +7,7 @@ function element(id,input){return {id,tagName:input?'INPUT':'DIV',type:'text',re
  focus(){if(doc.activeElement && doc.activeElement!==this)doc.activeElement.blur();doc.activeElement=this;if(input)inputFocuses++;},
  blur(){if(this.handlers.blur)this.handlers.blur();if(doc.activeElement===this)doc.activeElement=null;}
 };}
-['host','port','piccapPort','token','customProfile'].forEach(id=>{elements[id]=element(id,true);elements[id+'Field']=element(id+'Field',false);});
+['host','port','piccapPort','captureInterval','token','customProfile'].forEach(id=>{elements[id]=element(id,true);elements[id+'Field']=element(id+'Field',false);});
 ['overview','receiver','calibration'].forEach(key=>{elements[key+'Panel']=element(key+'Panel');elements[key+'Tab']=element(key+'Tab');});
 ['start','receiver','calibrate','calibrationShortcut'].forEach(id=>elements[id]=element(id));
 const win={addEventListener(k,f){windowEvents[k]=f;}};
diff --git a/tests/receiver-ui.test.js b/tests/receiver-ui.test.js
index 68e8677..35707bc 100644
--- a/tests/receiver-ui.test.js
+++ b/tests/receiver-ui.test.js
@@ -1,6 +1,6 @@
 'use strict';
 const assert=require('assert'),fs=require('fs'),vm=require('vm');
-const ids=['reloadService','versionWarning','host','port','piccapPort','receiver','token','clearToken','endpoint','handover','autostart','error','status','regions','start','stop','refresh','saveTarget','testConnection','testResult','diagnostics','profile','customEditor','customProfile','saveProfile','profileStatus','calibrate','validateCalibration','cancelCalibration','editProfile','customProfileField','overviewTab','receiverTab','calibrationTab','calibrationShortcut','hostField','portField','piccapPortField','tokenField','grantRoot','rootHint'];
+const ids=['reloadService','versionWarning','host','port','piccapPort','captureInterval','receiver','token','clearToken','endpoint','handover','autostart','error','status','regions','start','stop','refresh','saveTarget','testConnection','testResult','diagnostics','profile','customEditor','customProfile','saveProfile','profileStatus','calibrate','validateCalibration','cancelCalibration','editProfile','customProfileField','overviewTab','receiverTab','calibrationTab','calibrationShortcut','hostField','portField','piccapPortField','captureIntervalField','tokenField','grantRoot','rootHint'];
 const elements={};
 ids.forEach(id=>elements[id]={value:'',textContent:'',disabled:false,checked:false,attributes:{},style:{},addEventListener(){},focus(){},appendChild(){},setAttribute(k,v){this.attributes[k]=v;},getAttribute(k){return this.attributes[k];}});
 const requests=[];
@@ -17,8 +17,8 @@ assert(elements.diagnostics.textContent.includes('Root service'));
 assert(controls.includes(elements.piccapPortField)&&controls.includes(elements.testConnection));
 context.targetDirty=true;elements.testConnection.onclick();assert(elements.error.textContent.includes('Save receiver'));
 elements.piccapPort.value='0';elements.saveTarget.onclick();assert(elements.error.textContent.includes('FlatBuffer port'));
-elements.piccapPort.value='19446';elements.host.value='10.1.0.100';elements.token.value='';elements.saveTarget.onclick();
-const saved=requests.find(r=>r.uri.endsWith('/settings'));assert.strictEqual(saved.data.piccapPort,19446);assert.strictEqual(saved.data.host,'10.1.0.100');assert(!('token' in saved.data));
+elements.piccapPort.value='19446';elements.captureInterval.value='26';elements.saveTarget.onclick();assert(elements.error.textContent.includes('Capture interval'));elements.captureInterval.value='100';elements.piccapPort.value='19446';elements.host.value='10.1.0.100';elements.token.value='';elements.saveTarget.onclick();
+const saved=requests.find(r=>r.uri.endsWith('/settings'));assert.strictEqual(saved.data.piccapPort,19446);assert.strictEqual(saved.data.captureIntervalMs,100);assert.strictEqual(saved.data.host,'10.1.0.100');assert(!('token' in saved.data));
 elements.testConnection.onclick();assert(requests.some(r=>r.uri.endsWith('/testConnection')));
 assert.strictEqual(elements.token.value,'');assert(!elements.diagnostics.textContent.includes('fixture-token'));
 elements.profile.onclick();assert(elements.profile.textContent.includes('LG G4'));elements.saveProfile.onclick();assert(requests.some(r=>r.uri.endsWith('/calibration')&&r.data.profile==='g4'));