A method implemented in an electronic device that includes a display (114; 114-1 - 114-27) and a radar system, the method comprising: determining, based on radar data received through the radar system, that a portion of a user is within a gesture zone of the electronic device; determining that an application operating on the electronic device is configured to receive radar-gesture input; and responsive to the determination that the portion of the user is within the gesture zone of the electronic device and the determination that the application operating on the electronic device is configured to receive radar-gesture input, providing a feedback indicator on the display (114; 114-1 - 114-27) of the electronic device, the providing of the feedback indicator indicating that: the portion of the user is within the gesture zone; and the application can receive the radar-gesture input, wherein providing the feedback indicator on the display (114; 114-1 - 114-27) of the electronic device comprises adjusting a visual element (122; 802; 804; 906; 910; 1004; 1104; 1202, 1208; 1308, 1310, 1312, 1314; 1404, 1406) that is already being presented at an edge of an active area of the display (114; 114-1 - 114-27) for indicating that the application operating on the electronic device is configured to receive radar-gesture input; and wherein adjusting the visual element (122; 802; 804; 906; 910; 1004; 1104; 1202, 1208; 1308, 1310, 1312, 1314; 1404, 1406) that is already being presented comprises enlarging an area of the visual element (122; 802; 804; 906; 910; 1004; 1104; 1202, 1208; 1308, 1310, 1312, 1314; 1404, 1406) that is already being presented. determining, based on radar data received through the radar system, that a portion of a user is within a gesture zone of the electronic device; determining that an application operating on the electronic device is configured to receive radar-gesture input; and responsive to the determination that the portion of the user is within the gesture zone of the electronic device and the determination that the application operating on the electronic device is configured to receive radar-gesture input, providing a feedback indicator on the display (114; 114-1 - 114-27) of the electronic device, the providing of the feedback indicator indicating that: the portion of the user is within the gesture zone; and the application can receive the radar-gesture input, the portion of the user is within the gesture zone; and the application can receive the radar-gesture input, wherein providing the feedback indicator on the display (114; 114-1 - 114-27) of the electronic device comprises adjusting a visual element (122; 802; 804; 906; 910; 1004; 1104; 1202, 1208; 1308, 1310, 1312, 1314; 1404, 1406) that is already being presented at an edge of an active area of the display (114; 114-1 - 114-27) for indicating that the application operating on the electronic device is configured to receive radar-gesture input; and wherein adjusting the visual element (122; 802; 804; 906; 910; 1004; 1104; 1202, 1208; 1308, 1310, 1312, 1314; 1404, 1406) that is already being presented comprises enlarging an area of the visual element (122; 802; 804; 906; 910; 1004; 1104; 1202, 1208; 1308, 1310, 1312, 1314; 1404, 1406) that is already being presented. providing the feedback indicator on the display (114; 114-1 - 114-27) of the electronic device comprises adjusting a visual element (122; 802; 804; 906; 910; 1004; 1104; 1202, 1208; 1308, 1310, 1312, 1314; 1404, 1406) that is already being presented at an edge of an active area of the display (114; 114-1 - 114-27) for indicating that the application operating on the electronic device is configured to receive radar-gesture input; and wherein adjusting the visual element (122; 802; 804; 906; 910; 1004; 1104; 1202, 1208; 1308, 1310, 1312, 1314; 1404, 1406) that is already being presented comprises enlarging an area of the visual element (122; 802; 804; 906; 910; 1004; 1104; 1202, 1208; 1308, 1310, 1312, 1314; 1404, 1406) that is already being presented.