Add discussion icon

app/src/main/res/drawable/ic_discussion_20dp.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="20dp"
+    android:height="20dp"
+    android:viewportWidth="20"
+    android:viewportHeight="20">
+
+    <path
+        android:fillColor="#9EA2A8"
+        android:fillType="nonZero"
+        android:pathData="M17.0178,9.0088C17.4002,8.2308 17.479,7.9789 17.479,7.6459C17.479,4.8323 15.0667,2.5397 12.1027,2.5397C9.1391,2.5397 6.7273,4.832 6.7273,7.6459C6.7273,10.6045 9.2399,12.7514 12.8986,12.7514L13.0419,12.7522L13.2199,12.7522C15.7971,12.7522 17.3253,12.49 17.9955,12.099C17.4393,11.8181 17.312,11.7402 17.0644,11.4817C16.7269,11.1295 16.5447,10.6642 16.5903,10.1635C16.6148,9.8935 16.6686,9.7447 16.7751,9.5219C16.8362,9.3843 16.8928,9.2651 17.0178,9.0088ZM18.3011,10.1607C18.1916,10.3871 18.2091,10.4113 18.8615,10.7397C19.8228,11.2213 20.24,11.6696 19.8612,12.4352C19.1566,13.8599 16.8659,14.3395 13.2199,14.3395L13.0419,14.3395L12.8892,14.3387C8.3595,14.3387 5.0607,11.5237 5.0607,7.6459C5.0607,3.9545 8.2195,0.9524 12.1027,0.9524C15.9862,0.9524 19.1457,3.9547 19.1457,7.6459C19.1457,8.2881 18.979,8.7628 18.5273,9.6817C18.4105,9.9212 18.3589,10.0296 18.3011,10.1607ZM13.5847,16.3438C13.4018,16.575 13.2033,16.7931 12.9903,16.9977C12.7079,16.9977 12.4278,16.9894 12.1501,16.973L12.251,15.4273C12.2578,15.4187 12.2646,15.4102 12.2714,15.4016L13.5847,16.3438ZM12.2535,15.3888L12.2714,15.4016C12.2744,15.3979 12.2774,15.3941 12.2804,15.3903C12.5148,15.4037 12.7523,15.4104 12.9928,15.4104L13.1738,15.4114L13.3848,15.4114C13.6721,15.4114 13.9523,15.4089 14.2253,15.4036C13.9139,15.9928 13.5075,16.528 13.0195,16.9979L12.9928,16.9977C12.9919,16.9977 12.9911,16.9977 12.9903,16.9977C11.5566,18.3752 9.469,19.1391 7.111,19.1391L6.9581,19.1399L6.7801,19.1399C4.1004,19.1399 2.2612,18.8789 1.204,18.2903L0.9763,18.1635C0.5978,17.9163 0.3174,17.6159 0.1388,17.2549C-0.1741,16.6227 0.056,16.2068 0.6871,15.8098L1.263,15.5183C1.6568,15.319 1.6328,15.3349 1.7194,15.2446C1.7599,15.2023 1.7736,15.1649 1.7694,15.1185C1.7642,15.0606 1.772,15.0866 1.7081,14.9517C1.6576,14.8377 1.6095,14.736 1.491,14.4933C1.0219,13.5389 0.8746,13.0988 0.8746,12.4656C0.8746,11.0845 1.3214,9.7648 2.1303,8.6606C2.129,8.6512 2.1278,8.6417 2.1265,8.6322C2.5652,8.0375 3.1029,7.5134 3.7168,7.0817C3.713,7.1803 3.7112,7.2792 3.7112,7.3786C3.7112,7.962 3.7726,8.5253 3.8907,9.0644C3.8873,9.068 3.8839,9.0717 3.8805,9.0753L3.896,9.0884L3.8618,9.0953C3.0102,10.0132 2.521,11.2015 2.521,12.4656C2.521,12.7985 2.5998,13.0505 2.9842,13.8326C3.1146,14.0999 3.1702,14.2175 3.2126,14.3161C3.3274,14.5534 3.3842,14.703 3.4097,14.9832C3.4553,15.4839 3.2731,15.9492 2.9356,16.3014C2.6884,16.5596 2.561,16.6376 2.0044,16.9188C2.6743,17.3097 4.2025,17.5719 6.7801,17.5719L6.9487,17.5719L7.1108,17.5711C9.3389,17.5711 11.1786,16.7606 12.251,15.4273L12.2535,15.3888ZM1.9145,16.9641C1.6344,17.1044 1.5191,17.1878 1.5466,17.1462C1.6888,16.9311 1.6902,16.6667 1.6467,16.5786C1.7065,16.6996 1.8245,16.8138 2.0044,16.9188C1.9756,16.9333 1.9457,16.9484 1.9145,16.9641ZM2.2655,9.4174C2.2101,9.1681 2.165,8.9157 2.1303,8.6606C2.2904,8.4422 2.4646,8.2321 2.6523,8.0317L3.8805,9.0753C3.8743,9.0819 3.868,9.0886 3.8618,9.0953L2.2655,9.4174ZM2.8863,15.5497L2.0452,16.92L2.8273,18.3216C3.5014,17.9804 3.7692,17.8068 4.1368,17.4308C4.8511,17.5089 5.7278,17.5526 6.7801,17.5526L6.9581,17.5526L7.1013,17.5518C9.3708,17.5518 11.1972,16.724 12.2535,15.3888C12.4966,15.4031 12.7431,15.4104 12.9928,15.4104L13.1738,15.4114L13.3848,15.4114C13.6721,15.4114 13.9523,15.4089 14.2253,15.4036C13.0193,17.6858 10.387,19.1584 7.1108,19.1584L6.9581,19.1592L6.7801,19.1592C3.1341,19.1592 0.8434,18.6796 0.1388,17.2549C-0.24,16.4893 0.1772,16.041 1.1385,15.5594C1.7909,15.231 1.8084,15.2068 1.6989,14.9803C1.6411,14.8493 1.5895,14.7409 1.4727,14.5014C1.021,13.5824 0.8543,13.1078 0.8543,12.4656C0.8543,10.2609 1.9815,8.302 3.7168,7.0817C3.713,7.1803 3.7112,7.2792 3.7112,7.3786C3.7112,7.9706 3.7745,8.542 3.896,9.0884C3.0537,9.9876 2.5412,11.1713 2.5412,12.4656C2.5412,12.7951 2.6193,13.0447 3.0005,13.8203C3.1256,14.0767 3.1822,14.1961 3.2434,14.3338C3.3508,14.5585 3.405,14.7087 3.4299,14.9815C3.4528,15.2336 3.4186,15.4768 3.3365,15.7014C3.1322,15.6538 2.9811,15.6024 2.8863,15.5497Z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
\ No newline at end of file