material-design-icons
许可类型：Apache License Version 2.0
这是来自谷歌的两套不同官方图标集，它们基于相同的设计理念。Material Symbols 是当前的图标集，于2022年4月推出，基于可变字体技术构建。而 Material Icons 则是经典图标集，但已不再更新。
rocket
rocket_launch
roller_shades
roller_shades_closed
roller_skating
room
roofing
room_preferences
room_service
rotate_90_degrees_ccw
rotate_90_degrees_cw
rotate_left
rotate_right
roundabout_left
roundabout_right
rounded_corner
route
router
rowing
rss_feed
rsvp
rtt
rule
rule_folder
running_with_errors
run_circle
rv_hookup
r_mobiledata
safety_check
safety_divider
sailing
sanitizer
satellite
satellite_alt
save
saved_search
save_alt
save_as
savings
scale
scanner
scatter_plot
schedule
schedule_send
schema
school
science
score
scoreboard
screenshot
screenshot_monitor
screen_lock_landscape
screen_lock_portrait
screen_lock_rotation
screen_rotation
screen_rotation_alt
screen_search_desktop
screen_share
scuba_diving
sd
sd_card
sd_card_alert
sd_storage
search
search_off
security
security_update
security_update_good
security_update_warning
segment
select_all
self_improvement
sell
send
send_and_archive
send_time_extension
send_to_mobile
sensors
sensors_off
sensor_door
sensor_occupied
sensor_window
sentiment_dissatisfied
sentiment_neutral
sentiment_satisfied
sentiment_satisfied_alt
sentiment_very_dissatisfied
sentiment_very_satisfied
settings
settings_accessibility
settings_applications
settings_backup_restore
settings_bluetooth
settings_brightness
settings_cell
settings_ethernet
settings_input_antenna
settings_input_component
settings_input_composite
settings_input_hdmi