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。
radio_button_checked
railway_alert
radio_button_unchecked
ramp_left
read_more
recent_actors
receipt_long
real_estate_agent
recommend
receipt
record_voice_over
rectangle
redo
remove
recycling
remove_circle
remove_circle_outline
remember_me
redeem
reduce_capacity
refresh
repartition
remove_moderator
remove_from_queue
reorder
remove_shopping_cart
remove_done
remove_red_eye
remove_road
repeat_on
repeat_one
replay_30
replay
repeat_one_on
repeat
replay_5
replay_10
report_problem
request_page
report_gmailerrorred
request_quote
reply
report
reply_all
report_off
replay_circle_filled
restart_alt
reset_tv
restore_from_trash
restore_page
restaurant_menu
reviews
rice_bowl
restaurant
restore
rocket_launch
roller_skating
room
ring_volume
roller_shades
roofing
roller_shades_closed
rocket
rotate_90_degrees_ccw
roundabout_right
rounded_corner
roundabout_left
rotate_right
room_preferences
room_service
rotate_90_degrees_cw
rotate_left
router
rule_folder
rowing
running_with_errors
rss_feed
route
rsvp
rtt
rule
sanitizer
rv_hookup
satellite
sailing
r_mobiledata
safety_check
run_circle
safety_divider
saved_search
save_alt
save
satellite_alt
scanner
scale
scatter_plot
savings
schedule_send
schedule
save_as