diff --git a/WebPageHtml.pas b/WebPageHtml.pas
index 6eaaecb..c1fd882 100644
--- a/WebPageHtml.pas
+++ b/WebPageHtml.pas
@@ -459,7 +459,7 @@ begin
     'if(!bins?.length){drawMk(sctx,w,h);return;}' +
     'if(specSm.length!==bins.length)specSm=new Array(bins.length).fill(-130);' +
     'const avf=activeVfoHz();const[fl,fh]=fltLH(),x1=hzToX(avf+fl,w),x2=hzToX(avf+fh,w);' +
-    'sctx.fillStyle="rgba(80,150,255,.12)";sctx.fillRect(Math.min(x1,x2),0,Math.abs(x2-x1),h);' +
+    'sctx.fillStyle=(cur.transmitting||cur.tuning)?"rgba(255,60,60,.18)":"rgba(80,150,255,.12)";sctx.fillRect(Math.min(x1,x2),0,Math.abs(x2-x1),h);' +
     'sctx.beginPath();for(let x=0;x<w;x++){const i=Math.floor(x*(bins.length-1)/Math.max(1,w-1));specSm[i]=specSm[i]*.70+bins[i]*.30;const y=cl(((-specSm[i]-20)/120)*h,0,h-1);x===0?sctx.moveTo(0,y):sctx.lineTo(x,y);}' +
     'const g=sctx.createLinearGradient(0,0,0,h);g.addColorStop(0,"rgba(60,230,60,.2)");g.addColorStop(1,"rgba(60,230,60,.01)");' +
     'sctx.lineTo(w,h);sctx.lineTo(0,h);sctx.closePath();sctx.fillStyle=g;sctx.fill();' +
@@ -484,7 +484,7 @@ begin
     'for(let x=0;x<w;x++){const i=Math.floor(x*(wfAvg.length-1)/Math.max(1,w-1));const[r,g,b]=pal(wfAvg[i]);const o=x*4;row.data[o]=r;row.data[o+1]=g;row.data[o+2]=b;row.data[o+3]=255;}' +
     'wfBCtx.putImageData(row,0,0);wctx.drawImage(wfBuf,0,0,w,h);' +
     'const avf2=activeVfoHz();const[fl2,fh2]=fltLH(),x1w=hzToX(avf2+fl2,w),x2w=hzToX(avf2+fh2,w);' +
-    'wctx.fillStyle="rgba(220,230,230,.10)";wctx.fillRect(Math.min(x1w,x2w),0,Math.abs(x2w-x1w),h);' +
+    'wctx.fillStyle=(cur.transmitting||cur.tuning)?"rgba(255,60,60,.15)":"rgba(220,230,230,.10)";wctx.fillRect(Math.min(x1w,x2w),0,Math.abs(x2w-x1w),h);' +
     'const vxw=hzToX(avf2,w);wctx.strokeStyle="#60ff80";wctx.lineWidth=1;wctx.beginPath();wctx.moveTo(vxw,0);wctx.lineTo(vxw,h);wctx.stroke();drawMk(wctx,w,h);}' +
 
     'function rcv(cv){const dpr=Math.max(1,devicePixelRatio||1),w=cv.clientWidth|0,h=cv.clientHeight|0;if(cv.width!==(w*dpr|0)||cv.height!==(h*dpr|0)){cv.width=w*dpr;cv.height=h*dpr;cv.getContext("2d").setTransform(dpr,0,0,dpr,0,0);}}' +