UX improvements

* SequenceLengthIndicator has a cleaner look
* It displays the time in the basic format now

theatre/core/src/sequences/Sequence.ts

@@ -293,6 +293,7 @@ export interface ISequencePositionFormatter {
   formatSubUnitForGrid(posInUnitSpace: number): string
   formatFullUnitForGrid(posInUnitSpace: number): string
   formatForPlayhead(posInUnitSpace: number): string
+  formatBasic(posInUnitSpace: number): string
 }
 
 class TimeBasedPositionFormatter implements ISequencePositionFormatter {
@@ -382,6 +383,10 @@ class TimeBasedPositionFormatter implements ISequencePositionFormatter {
 
     return s.length === 0 ? '00s00f' : s
   }
+
+  formatBasic(posInUnitSpace: number): string {
+    return posInUnitSpace.toFixed(2) + 's'
+  }
 }
 
 const second = 1

theatre/studio/src/panels/SequenceEditorPanel/DopeSheet/Right/BasicKeyframedTrack/KeyframeEditor/Dot.tsx

@@ -66,7 +66,6 @@ const Dot: React.FC<IProps> = (props) => {
     <>
       <HitZone
         ref={ref}
-        title={props.keyframe.position.toFixed(8)}
         data-pos={props.keyframe.position.toFixed(3)}
         {...{
           [attributeNameThatLocksFramestamp]:

theatre/studio/src/panels/SequenceEditorPanel/DopeSheet/Right/LengthIndicator.tsx

@@ -16,6 +16,7 @@ import {
   attributeNameThatLocksFramestamp,
   useLockFrameStampPosition,
 } from '@theatre/studio/panels/SequenceEditorPanel/FrameStampPositionProvider'
+import {GoChevronLeft, GoChevronRight} from 'react-icons/all'
 
 const coverWidth = 1000
 
@@ -50,23 +51,61 @@ const Strip = styled.div`
   }
 `
 
-const Bulge = styled.div`
+const ThumbContainer = styled.div`
   position: absolute;
-  top: ${topStripHeight + 4}px;
+  top: ${topStripHeight - 15}px;
+  width: 100px;
+  left: -50px;
+  pointer-events: none;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  z-index: 1;
+`
+
+const Tooltip = styled.div`
+  margin-top: 8px;
   font-size: 10px;
-  left: 0px;
   white-space: nowrap;
-  padding: 2px 8px 2px 8px;
+  padding: 1px 8px;
   border-radius: 0 2px 2px 0;
   pointer-events: auto;
   cursor: ew-resize;
-  color: #555;
   color: #464646;
   background-color: #0000004d;
+  display: none;
+
+  ${Strip}:hover &, ${Strip}.dragging & {
+    display: block;
+    color: white;
+    background-color: ${colors.stripActive};
+  }
+`
+
+const Tumb = styled.div`
+  font-size: 10px;
+  white-space: nowrap;
+  padding: 1px 2px;
+  border-radius: 2px;
+  pointer-events: auto;
+  justify-content: center;
+  align-items: center;
+  cursor: ew-resize;
+  color: #5d5d5d;
+  background-color: #191919;
 
   ${Strip}:hover &, ${Strip}.dragging & {
     color: white;
     background-color: ${colors.stripActive};
+
+    & > svg:first-child {
+      margin-right: -1px;
+    }
+  }
+
+  & > svg:first-child {
+    margin-right: -4px;
   }
 `
 
@@ -121,34 +160,31 @@ const LengthIndicator: React.FC<IProps> = ({layoutP}) => {
       <>
         {popoverNode}
         <Strip
-          title="Change Sequence Length"
           style={{
             height: height + 'px',
             transform: `translateX(${translateX === 0 ? -1000 : translateX}px)`,
           }}
           className={val(isDraggingD) ? 'dragging' : ''}
         >
-          <Bulge
+          <ThumbContainer>
+            <Tumb
               ref={nodeRef}
-            title="Length of the sequence (sequence.length)"
+              title="Length of the sequence. Drag or click to change."
               onClick={(e) => {
                 openPopover(e, node!)
               }}
               {...{[attributeNameThatLocksFramestamp]: 'hide'}}
             >
-            {sequence.positionFormatter.formatForPlayhead(sequenceLength)}
+              <GoChevronLeft />
-          </Bulge>
+              <GoChevronRight />
+            </Tumb>
+            <Tooltip>
+              {sequence.positionFormatter.formatBasic(sequenceLength)}
+            </Tooltip>
+          </ThumbContainer>
         </Strip>
         <Cover
           title="Length"
-          // onClick={() => {
-          //   getStudio()!.transaction(({stateEditors}) => {
-          //     stateEditors.coreByProject.historic.sheetsById.sequence.setLength({
-          //       ...sheet.address,
-          //       length: 10,
-          //     })
-          //   })
-          // }}
           style={{
             height: height + 'px',
             transform: `translateX(${translateX}px) scale(${scaleX}, 1)`,