diff --git a/cvat-canvas/src/typescript/canvasView.ts b/cvat-canvas/src/typescript/canvasView.ts
index ebda629c183b..3d661f3d6ae9 100644
--- a/cvat-canvas/src/typescript/canvasView.ts
+++ b/cvat-canvas/src/typescript/canvasView.ts
@@ -464,9 +464,10 @@ export class CanvasViewImpl implements CanvasView, Listener {
                     const circle: SVG.Circle = this.nested
                         .circle(this.options.pointSize)
                         .stroke('black')
-                        .fill(shape.node.getAttribute('fill') || 'inherit')
+                        .fill('inherit')
                         .center(cx, cy)
                         .attr({
+                            'fill-opacity': 1,
                             'stroke-width': consts.POINTS_STROKE_WIDTH / self.geometry.scale,
                         });
 
@@ -496,6 +497,11 @@ export class CanvasViewImpl implements CanvasView, Listener {
                 deepSelect: true,
             });
         }
+
+        const handler = shape.remember('_selectHandler');
+        if (handler && handler.nested) {
+            handler.nested.fill(shape.attr('fill'));
+        }
     }
 
     public constructor(model: CanvasModel & Master, controller: CanvasController) {
@@ -1314,10 +1320,7 @@ export class CanvasViewImpl implements CanvasView, Listener {
             .addClass('cvat_canvas_shape').attr({
                 clientID: state.clientID,
                 id: `cvat_canvas_shape_${state.clientID}`,
-                fill: state.color,
                 'data-z-order': state.zOrder,
-            }).style({
-                'fill-opacity': 1,
             });
 
         group.bbox = basicPolyline.bbox.bind(basicPolyline);
diff --git a/cvat-core/src/annotations-objects.js b/cvat-core/src/annotations-objects.js
index e5de9685e3a9..deb16aea26b0 100644
--- a/cvat-core/src/annotations-objects.js
+++ b/cvat-core/src/annotations-objects.js
@@ -345,7 +345,7 @@
 
             if (updated.color) {
                 checkObjectType('color', data.color, 'string', null);
-                if (/^#[0-9A-F]{6}$/i.test(data.color)) {
+                if (!/^#[0-9A-F]{6}$/i.test(data.color)) {
                     throw new ArgumentError(
                         `Got invalid color value: "${data.color}"`,
                     );
diff --git a/cvat-ui/src/components/annotation-page/standard-workspace/canvas-wrapper.tsx b/cvat-ui/src/components/annotation-page/standard-workspace/canvas-wrapper.tsx
index e7a08656f3e1..3bcf6a596e4d 100644
--- a/cvat-ui/src/components/annotation-page/standard-workspace/canvas-wrapper.tsx
+++ b/cvat-ui/src/components/annotation-page/standard-workspace/canvas-wrapper.tsx
@@ -302,15 +302,12 @@ export default class CanvasWrapperComponent extends React.PureComponent<Props> {
             // TODO: In this approach CVAT-UI know details of implementations CVAT-CANVAS (svg.js)
             const shapeView = window.document.getElementById(`cvat_canvas_shape_${state.clientID}`);
             if (shapeView) {
-                if (['rect', 'polygon', 'polyline'].includes(shapeView.tagName)) {
-                    (shapeView as any).instance.fill({ color: shapeColor, opacity: opacity / 100 });
-                    (shapeView as any).instance.stroke({ color: blackBorders ? 'black' : shapeColor });
-                } else {
-                    // group of points
-                    for (const child of (shapeView as any).instance.children()) {
-                        child.fill({ color: shapeColor });
-                    }
+                const handler = (shapeView as any).instance.remember('_selectHandler');
+                if (handler && handler.nested) {
+                    handler.nested.fill({ color: shapeColor });
                 }
+                (shapeView as any).instance.fill({ color: shapeColor, opacity: opacity / 100 });
+                (shapeView as any).instance.stroke({ color: blackBorders ? 'black' : shapeColor });
             }
         }
     }
diff --git a/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/color-changer.tsx b/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/color-changer.tsx
new file mode 100644
index 000000000000..1a96ff32bdd2
--- /dev/null
+++ b/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/color-changer.tsx
@@ -0,0 +1,56 @@
+import React from 'react';
+
+import {
+    Row,
+    Col,
+    Button,
+} from 'antd';
+
+interface Props {
+    colors: string[];
+    onChange(color: string): void;
+}
+
+function ColorChanger(props: Props): JSX.Element {
+    const {
+        colors,
+        onChange,
+    } = props;
+
+    const cols = 6;
+    const rows = Math.ceil(colors.length / cols);
+
+    const antdRows = [];
+    for (let row = 0; row < rows; row++) {
+        const antdCols = [];
+        for (let col = 0; col < cols; col++) {
+            const idx = row * cols + col;
+            if (idx >= colors.length) {
+                break;
+            }
+            const color = colors[idx];
+            antdCols.push(
+                <Col key={col} span={4}>
+                    <Button
+                        onClick={(): void => onChange(color)}
+                        style={{ background: color }}
+                        className='cvat-label-item-color-button'
+                    />
+                </Col>,
+            );
+        }
+
+        antdRows.push(
+            // eslint-disable-next-line react/no-children-prop
+            <Row key={row} children={antdCols} />,
+        );
+    }
+
+    return (
+        <>
+            {antdRows}
+        </>
+    );
+}
+
+export default React.memo(ColorChanger);
diff --git a/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/label-item.tsx b/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/label-item.tsx
index 48d2aa92e222..8eafe967669d 100644
--- a/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/label-item.tsx
+++ b/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/label-item.tsx
@@ -9,53 +9,7 @@ import {
 } from 'antd';
 
 import Text from 'antd/lib/typography/Text';
-
-interface PopoverContentProps {
-    colors: string[];
-    changeColor(color: string): void;
-}
-
-function PopoverContent(props: PopoverContentProps): JSX.Element {
-    const {
-        colors,
-        changeColor,
-    } = props;
-
-    const cols = 6;
-    const rows = Math.ceil(colors.length / cols);
-
-    const antdRows = [];
-    for (let row = 0; row < rows; row++) {
-        const antdCols = [];
-        for (let col = 0; col < cols; col++) {
-            const idx = row * cols + col;
-            if (idx >= colors.length) {
-                break;
-            }
-            const color = colors[idx];
-            antdCols.push(
-                <Col key={col} span={4}>
-                    <Button
-                        onClick={(): void => changeColor(color)}
-                        style={{ background: color }}
-                        className='cvat-label-item-color-button'
-                    />
-                </Col>,
-            );
-        }
-
-        antdRows.push(
-            // eslint-disable-next-line react/no-children-prop
-            <Row key={row} children={antdCols} />,
-        );
-    }
-
-    return (
-        <>
-            {antdRows}
-        </>
-    );
-}
+import ColorChanger from 'components/annotation-page/standard-workspace/objects-side-bar/color-changer';
 
 interface Props {
     labelName: string;
@@ -99,8 +53,8 @@ function LabelItemComponent(props: Props): JSX.Element {
                     placement='left'
                     trigger='click'
                     content={(
-                        <PopoverContent
-                            changeColor={changeColor}
+                        <ColorChanger
+                            onChange={changeColor}
                             colors={labelColors}
                         />
                     )}
diff --git a/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/object-item.tsx b/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/object-item.tsx
index 5dc79c1ef2a0..ceb4040a8446 100644
--- a/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/object-item.tsx
+++ b/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/object-item.tsx
@@ -14,11 +14,13 @@ import {
     Menu,
     Button,
     Modal,
+    Popover,
 } from 'antd';
 
 import Text from 'antd/lib/typography/Text';
 import { RadioChangeEvent } from 'antd/lib/radio';
 import { CheckboxChangeEvent } from 'antd/lib/checkbox';
+import ColorChanger from 'components/annotation-page/standard-workspace/objects-side-bar/color-changer';
 
 import {
     ObjectOutsideIcon,
@@ -134,12 +136,12 @@ function ItemTopComponent(props: ItemTopComponentProps): JSX.Element {
     return (
         <Row type='flex' align='middle'>
             <Col span={10}>
-                <Text style={{ fontSize: 16 }}>{clientID}</Text>
+                <Text style={{ fontSize: 12 }}>{clientID}</Text>
                 <br />
-                <Text style={{ fontSize: 10 }}>{type}</Text>
+                <Text type='secondary' style={{ fontSize: 10 }}>{type}</Text>
             </Col>
             <Col span={12}>
-                <Select value={`${labelID}`} onChange={changeLabel}>
+                <Select size='small' value={`${labelID}`} onChange={changeLabel}>
                     { labels.map((label: any): JSX.Element => (
                         <Select.Option key={label.id} value={`${label.id}`}>
                             {label.name}
@@ -349,7 +351,7 @@ function ItemAttributeComponent(props: ItemAttributeComponentProps): JSX.Element
                         changeAttribute(attrID, value);
                     }}
                 >
-                    <Text strong className='cvat-text' style={{ fontSize: '1.2em' }}>
+                    <Text strong className='cvat-text'>
                         {attrName}
                     </Text>
                 </Checkbox>
@@ -365,6 +367,7 @@ function ItemAttributeComponent(props: ItemAttributeComponentProps): JSX.Element
                         <Text strong className='cvat-text'>{attrName}</Text>
                     </legend>
                     <Radio.Group
+                        size='small'
                         value={attrValue}
                         onChange={(event: RadioChangeEvent): void => {
                             changeAttribute(attrID, event.target.value);
@@ -383,12 +386,13 @@ function ItemAttributeComponent(props: ItemAttributeComponentProps): JSX.Element
         return (
             <>
                 <Col span={24}>
-                    <Text strong className='cvat-text' style={{ fontSize: '1.2em' }}>
+                    <Text strong className='cvat-text'>
                         {attrName}
                     </Text>
                 </Col>
                 <Col span={24}>
                     <Select
+                        size='small'
                         onChange={(value: string): void => {
                             changeAttribute(attrID, value);
                         }}
@@ -410,12 +414,13 @@ function ItemAttributeComponent(props: ItemAttributeComponentProps): JSX.Element
         return (
             <>
                 <Col span={24}>
-                    <Text strong className='cvat-text' style={{ fontSize: '1.2em' }}>
+                    <Text strong className='cvat-text'>
                         {attrName}
                     </Text>
                 </Col>
                 <Col span={24}>
                     <InputNumber
+                        size='small'
                         onChange={(value: number | undefined): void => {
                             if (typeof (value) !== 'undefined') {
                                 changeAttribute(attrID, `${value}`);
@@ -435,12 +440,13 @@ function ItemAttributeComponent(props: ItemAttributeComponentProps): JSX.Element
     return (
         <>
             <Col span={24}>
-                <Text strong className='cvat-text' style={{ fontSize: '1.2em' }}>
+                <Text strong className='cvat-text'>
                     {attrName}
                 </Text>
             </Col>
             <Col span={24}>
                 <Input
+                    size='small'
                     onChange={(event: React.ChangeEvent<HTMLInputElement>): void => {
                         changeAttribute(attrID, event.target.value);
                     }}
@@ -501,7 +507,7 @@ function ItemAttributesComponent(props: ItemAttributesComponentProps): JSX.Eleme
                 onChange={collapse}
             >
                 <Collapse.Panel
-                    header='Details'
+                    header={<span style={{ fontSize: '11px' }}>Details</span>}
                     key='details'
                 >
                     { sorted.map((attribute: any): JSX.Element => (
@@ -544,6 +550,7 @@ interface Props {
     keyframe: boolean | undefined;
     attrValues: Record<number, string>;
     color: string;
+    colors: string[];
 
     labels: any[];
     attributes: any[];
@@ -572,6 +579,7 @@ interface Props {
     show(): void;
     changeLabel(labelID: string): void;
     changeAttribute(attrID: number, value: string): void;
+    changeColor(color: string): void;
     collapse(): void;
 }
 
@@ -613,6 +621,7 @@ function ObjectItemComponent(props: Props): JSX.Element {
         attrValues,
         labelID,
         color,
+        colors,
 
         attributes,
         labels,
@@ -641,6 +650,7 @@ function ObjectItemComponent(props: Props): JSX.Element {
         show,
         changeLabel,
         changeAttribute,
+        changeColor,
         collapse,
     } = props;
 
@@ -651,59 +661,77 @@ function ObjectItemComponent(props: Props): JSX.Element {
         : 'cvat-objects-sidebar-state-item cvat-objects-sidebar-state-active-item';
 
     return (
-        <div
-            onMouseEnter={activate}
-            id={`cvat-objects-sidebar-state-item-${clientID}`}
-            className={className}
-            style={{ borderLeftStyle: 'solid', borderColor: ` ${color}` }}
-        >
-            <ItemTop
-                serverID={serverID}
-                clientID={clientID}
-                labelID={labelID}
-                labels={labels}
-                type={type}
-                locked={locked}
-                changeLabel={changeLabel}
-                copy={copy}
-                remove={remove}
-                propagate={propagate}
-                createURL={createURL}
-                toBackground={toBackground}
-                toForeground={toForeground}
-            />
-            <ItemButtons
-                objectType={objectType}
-                occluded={occluded}
-                outside={outside}
-                locked={locked}
-                hidden={hidden}
-                keyframe={keyframe}
-                navigateFirstKeyframe={navigateFirstKeyframe}
-                navigatePrevKeyframe={navigatePrevKeyframe}
-                navigateNextKeyframe={navigateNextKeyframe}
-                navigateLastKeyframe={navigateLastKeyframe}
-                setOccluded={setOccluded}
-                unsetOccluded={unsetOccluded}
-                setOutside={setOutside}
-                unsetOutside={unsetOutside}
-                setKeyframe={setKeyframe}
-                unsetKeyframe={unsetKeyframe}
-                lock={lock}
-                unlock={unlock}
-                hide={hide}
-                show={show}
-            />
-            { !!attributes.length
-                && (
-                    <ItemAttributes
-                        collapsed={collapsed}
-                        attributes={attributes}
-                        values={attrValues}
-                        collapse={collapse}
-                        changeAttribute={changeAttribute}
+        <div style={{ display: 'flex' }}>
+            <Popover
+                placement='left'
+                trigger='click'
+                content={(
+                    <ColorChanger
+                        onChange={changeColor}
+                        colors={colors}
                     />
                 )}
+            >
+                <div
+                    className='cvat-objects-sidebar-state-item-color'
+                    style={{ background: ` ${color}` }}
+                />
+            </Popover>
+
+            <div
+                onMouseEnter={activate}
+                id={`cvat-objects-sidebar-state-item-${clientID}`}
+                className={className}
+                style={{ borderColor: ` ${color}` }}
+            >
+                <ItemTop
+                    serverID={serverID}
+                    clientID={clientID}
+                    labelID={labelID}
+                    labels={labels}
+                    type={type}
+                    locked={locked}
+                    changeLabel={changeLabel}
+                    copy={copy}
+                    remove={remove}
+                    propagate={propagate}
+                    createURL={createURL}
+                    toBackground={toBackground}
+                    toForeground={toForeground}
+                />
+                <ItemButtons
+                    objectType={objectType}
+                    occluded={occluded}
+                    outside={outside}
+                    locked={locked}
+                    hidden={hidden}
+                    keyframe={keyframe}
+                    navigateFirstKeyframe={navigateFirstKeyframe}
+                    navigatePrevKeyframe={navigatePrevKeyframe}
+                    navigateNextKeyframe={navigateNextKeyframe}
+                    navigateLastKeyframe={navigateLastKeyframe}
+                    setOccluded={setOccluded}
+                    unsetOccluded={unsetOccluded}
+                    setOutside={setOutside}
+                    unsetOutside={unsetOutside}
+                    setKeyframe={setKeyframe}
+                    unsetKeyframe={unsetKeyframe}
+                    lock={lock}
+                    unlock={unlock}
+                    hide={hide}
+                    show={show}
+                />
+                { !!attributes.length
+                    && (
+                        <ItemAttributes
+                            collapsed={collapsed}
+                            attributes={attributes}
+                            values={attrValues}
+                            collapse={collapse}
+                            changeAttribute={changeAttribute}
+                        />
+                    )}
+            </div>
         </div>
     );
 }
diff --git a/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/styles.scss b/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/styles.scss
index c35e5f1fb305..913b6110fa22 100644
--- a/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/styles.scss
+++ b/cvat-ui/src/components/annotation-page/standard-workspace/objects-side-bar/styles.scss
@@ -27,7 +27,7 @@
     fill: $objects-bar-icons-color;
     color: $objects-bar-icons-color;
 
-    font-size: 21px;
+    font-size: 15px;
 
     &:hover {
         transform: scale(1.1);
@@ -114,13 +114,25 @@
     background: $active-object-item-background-color;
 }
 
+.cvat-objects-sidebar-state-item-color {
+    width: 7px;
+    opacity: 1;
+
+    &:hover {
+        opacity: 0.7;
+    }
+}
+
 .cvat-objects-sidebar-state-item {
     width: 100%;
-    padding: 5px 5px 5px 5px;
-    border-left-width: 5px;
+    padding: 5px 3px 3px 3px;
     border-bottom: 1px dashed;
 
     > div:nth-child(1) {
+        > div:nth-child(1) {
+            line-height: 12px;
+        }
+
         > div:nth-child(3) > i {
             @extend .cvat-object-sidebar-icon;
             font-size: 25px;
@@ -133,17 +145,13 @@
 
     > div:nth-child(2)  {
         > div > div {
-            margin-top: 10px;
+            margin-top: 5px;
         }
 
         i {
             @extend .cvat-object-sidebar-icon;
         }
     }
-
-    > div:nth-child(3) {
-        margin-top: 10px;
-    }
 }
 
 .cvat-objects-sidebar-state-item-collapse {
@@ -193,7 +201,7 @@
         max-width: 80%;
         overflow: hidden;
         max-height: 1.2em;
-        font-size: 1.2em;
+        font-size: 1em;
 
         > span {
             padding: 0 10px;
diff --git a/cvat-ui/src/containers/annotation-page/standard-workspace/objects-side-bar/object-item.tsx b/cvat-ui/src/containers/annotation-page/standard-workspace/objects-side-bar/object-item.tsx
index 2461837d51fc..bb16b1c6abfb 100644
--- a/cvat-ui/src/containers/annotation-page/standard-workspace/objects-side-bar/object-item.tsx
+++ b/cvat-ui/src/containers/annotation-page/standard-workspace/objects-side-bar/object-item.tsx
@@ -32,6 +32,7 @@ interface StateToProps {
     activated: boolean;
     colorBy: ColorBy;
     ready: boolean;
+    colors: string[];
     activeControl: ActiveControl;
     minZLayer: number;
     maxZLayer: number;
@@ -73,6 +74,7 @@ function mapStateToProps(state: CombinedState, own: OwnProps): StateToProps {
                 ready,
                 activeControl,
             },
+            colors,
         },
         settings: {
             shapes: {
@@ -96,6 +98,7 @@ function mapStateToProps(state: CombinedState, own: OwnProps): StateToProps {
         ready,
         activeControl,
         colorBy,
+        colors,
         jobInstance,
         frameNumber,
         activated: activatedStateID === own.clientID,
@@ -234,10 +237,8 @@ class ObjectItemContainer extends React.PureComponent<Props> {
             minZLayer,
         } = this.props;
 
-        if (objectState.zOrder !== minZLayer) {
-            objectState.zOrder = minZLayer - 1;
-            this.commit();
-        }
+        objectState.zOrder = minZLayer - 1;
+        this.commit();
     };
 
     private toForeground = (): void => {
@@ -246,10 +247,8 @@ class ObjectItemContainer extends React.PureComponent<Props> {
             maxZLayer,
         } = this.props;
 
-        if (objectState.zOrder !== maxZLayer) {
-            objectState.zOrder = maxZLayer + 1;
-            this.commit();
-        }
+        objectState.zOrder = maxZLayer + 1;
+        this.commit();
     };
 
     private activate = (): void => {
@@ -335,6 +334,15 @@ class ObjectItemContainer extends React.PureComponent<Props> {
         collapseOrExpand([objectState], !collapsed);
     };
 
+    private changeColor = (color: string): void => {
+        const {
+            objectState,
+        } = this.props;
+
+        objectState.color = color;
+        this.commit();
+    };
+
     private changeLabel = (labelID: string): void => {
         const {
             objectState,
@@ -374,6 +382,7 @@ class ObjectItemContainer extends React.PureComponent<Props> {
             frameNumber,
             activated,
             colorBy,
+            colors,
         } = this.props;
 
         const {
@@ -412,6 +421,7 @@ class ObjectItemContainer extends React.PureComponent<Props> {
                 attrValues={{ ...objectState.attributes }}
                 labelID={objectState.label.id}
                 color={stateColor}
+                colors={colors}
                 attributes={attributes}
                 labels={labels}
                 collapsed={collapsed}
@@ -448,6 +458,7 @@ class ObjectItemContainer extends React.PureComponent<Props> {
                 unlock={this.unlock}
                 hide={this.hide}
                 show={this.show}
+                changeColor={this.changeColor}
                 changeLabel={this.changeLabel}
                 changeAttribute={this.changeAttribute}
                 collapse={this.collapse}