diff --git a/media/extra_grf/rivers/tropic_desert.png b/media/extra_grf/rivers/tropic_desert.png new file mode 100644 index 0000000000000000000000000000000000000000..868468637cbc5b5a8a68bbddcdaac0db22abdbcb GIT binary patch literal 15582 zc$}@e1yo#3+bwvI;FjP)(hw3fc!EQt!GddodxC4@Gz5o)#)3-{+$Fes;~pG>I|OZ{ zp)c=0Gyna+x!=rPcjneQXVqG#YCWaTu3gVQ5o#)L3Gtrd0RTX#ATOf<0BEp(UL1^v zFLkE9_YWDalf1qw0N|7U^P&N%=~MuKr}|M^T20Ny(aq7-#?c9+AT14Ya&ff!XlDrk zp7R-+)>@jo6k>?wb19{8Xo8ZX200E$Ln;bN7W6( z*RRlMa&-=ZNW59>4Tc|IKmQDm9JpQe`Dy#R8L>5dUo#`VU2>LDJ&N6qL-0+WPyIEN zpiqkb@t@Cq-My@B z6dyF;LjnUiT6Qb|BDD;c0c=Eol2M&VSwN2)AhS~H76N8p0o)3@R`Nha9nd~Pf?oyT z5CGij;UTO5rVn5OfBxJP2u=aWT*OsbJ1duM}$DKz`ysXF~vx9ZUW&+Os>)5u&n@kvCs!iHu+EwPB$c&CJ&C zH%E(|zyPr7=0ASV!BzbfDuM;IzyI;#2-C(0KieG~?S$YckyRY=mDcTjP(W6^dzTI|3_n!E{?V(RXcB9X$gfYQ2{u$BZ#v4jp+(6O0t zO@Zn7+tqDC;b>-&de6V&P^N@jF?7gd zK8a!i^@o$GGb+Wtmgmuk)BH%wPFg5H2uotwD~mG z3vs8u6>Aq|sO@XgXj&JF6oeI77dUE3c8lAmzz+-7(Tl6jIn_jVev3l{_{gyXnhxr+KEwWAew}C{GeTvKm%x|q@ zMjmBsYtCsd<>Td3yb}|?DB~=$&87L?Bm-%4$UjQXY&C*rDm&&cd$nxe(E4%RY2Df1 z?@b8q@X<|GxyxVEpX)|dn zbtdmU-*eO!)Ye-nRBgP^(?6}#hJgY zyDCm<`)dp9s4F&Su@=f|?Q8u^t<5N{>w3z%j^bP5{Tltg+=*cmhRqQb)4iwjcm3r; zCafd8oH~+zB;nU{{%x1bT5ptObe3enO6vyK&u8IL5lTUWoJr!G zX*9h{@Rkilw+m;(Rqu(5jI`>s&clL*@}oCLACJNovxfMySTptcT*tcL(tp%9$0hKy z61i3_#zO+_b?~}D z)h@?Ohzl*~E)DKZ(u@H1an}^m1D14^8W3=qcDK(F$?0mA!GW zYh6Jeo`tPttl_WwP$qN14V}Eck93}gwPbr!^zj_?z+YS!n|{dX-aows+of2eHksy_kCVayd2|f|(0p&B}zzOKHNH6saB{ zdtNc&7M{;>u`p+;B8GSIwbpyqTUH)}C6*yo_dO0#bzJm`*!{NEu#!jmukdQ6@^-Y| zv&^tzS6N%?TD1*F3;n<0Mti!+CY zs(M`dD>bG!p&2ydoRi=LY_VU7cBDT@ie3X8iNEJm#+tai7SUuAwE z`c{;*l|wU&C{DO_(|2iru3%NvIYa&h9mEm8XqgfE={Ju$kKU>*9isc_jIO^ z*iy@xwZUz|N&4EWRz$vzuj ze2c&e`8;|bdl5q{{U|0SW-yd6bU#y2Tu5k5!sTuknJ+zRG5Ru-^8UyDU>PL^m;crD z{>;dD^7!|p)1>$|d*9r0RRS|rmQ6k04Nd?5)cT)&CLx4gVog3EG#VC+}whLgA)=G3JMD9>+9ig z`0VWL&dv@JiR2fRmr*v*GjXzes1lu=o?TK=-#s+8$jyNX79~(qCNnXh_4EWMBv@2b z1P=`r$a7%oiIUlCuL}38sguRixW>{|c9(0!%nCp)xq>CM5NqR8#4o zoq7`F6o9;fB9ZMNOaM%VqeV+%$3Y7fWJ!=0EHF^6x6|u}+D#=uargleFaT1+Bw z;Pj^edeEGpMvG~|Lgp#R60Ho*wlJv=4`*VL;pW!@gDuq5+$=1@gM)KQO4_HU{;-fa zfjMA$;1V0jJn1TWRY(TyqFqxwAToi=u=oS2hb|ahrAW6U` zRBCoCCZ7CG!D`XjZYAyMLyJRyktO{6Q~dnMhsQz>3G+qPXCr6f$nyhvGA9F$XeXJ1 zXp8QG@IUa1tFe02&KOb@01O^>&I54^AZL?tsPqV!Y{>Y1X=S2W3~~fLo8^;dElU0vr1RTVfPLZ0us;TW z&XMqgt6z%;!OgRJ$tCB&`2}!s30xuo#1(LL4P4&^h!GM|?fIvMa06DeNVoJjO&0+DGsaN+1|u=~S5G zlHj`fXt$eI6Vr8Bc*Ng`*7s#;X{q7xH$+6EM|zO|XG$z-mc)I~&zr~=N3x(;H;rS| zt6&l`iadT^TujhXU=sU5W$y8exIZJx9;*hM$p;T(_;^1pRTV>hY-ngH!~6XDh)b}f zJg@fl3)#`p)=~RcEab|Y+*n)?!VycQ=zuolu=f0Jo;W8p<>`{Ul(mZPnQ=y5o=5g! zA0o-hYESOW>F@PDmmt=foDWit0k9hAtAeJUR65RgAJ2Zgw1%V>Ha-1rT*e(D@#~lI z{eGR}B700$1nQ$h7}x&Q*~h#xs~jPrap_*f%+T-wLNksKAdiqu05xT*QI)-^15iw`MP{eoPGg9pQxKmO>F$TGOWI#A!Za| zPUC{QZ=9TZX*V|F8bdI&w3M-Mm8L>facFhBIDnOG%8I3)koOBJeG~O?*_?;eA+J?*0}_WB+L(DO0+zCIoL5> zXiW)!u_k6{Bp02mtV27lPmS~MR(yXn3m3Ynw3aM%IM`Y-TPZ9cW_CtSLgul5Zgir>fP-+)sZ?> z7Y1(NA6&=o%Hq}Q$=U51)PlmFazI{i_luz0Yu`DkW8@`q>0~kH6Lh-~n#$u(S1!76 zuS1lBY7I&eI^^@*!;p~6l|p>!-q9Kecny|HzLXPfd}?&0BC#ZXk$!3X7)FxU{1{Od zT3)@%ztWn4i_}KLMY~$Yt2h3fj^BJ(DDYoh=fRUe@1DZ`ajH{qsGXnAv%kT&Hf_jw z7ewka@$}Zad>$1ruYDiY`s4vUz6<#2>zyPg@lp1^U^b1y=g4Vpyrz+E$05Xrvcs?x6%heQo8{;RB$U z%9hV?6_QUl3~u@%=sZoLSf>G~XX4Gejq;&3I&`g6aF{z47LG;!9r3f}{iZ4XXdZ{( zX%}1gfdvIG)!?d>G2}9sBsel4eMEvQ1Oj1xDK{90t)7C(8~$|~?J+$%b=D`gIEHvI z8QkYaT|KeSLn~w!gYhM!m6U&@=pKXZpRQX3E;#AN0JIes<&jZ3J99(D9$|jQlTp69bnJVxH_DFFjk6Q$0)lfFfSJjk zN~vvdkZ1>{Bp-%EMTSS<7MnDN8Tx&pOO<|P_dCr!+AvARWkg>)7#$w`J^h$&q2tqh z!9L4_@eaCKA`@#gY7@F(E99ZerwN#L_It6xN*Ao*q92icl75{9VUk+a=wlcTTXHQG zQEZH-cUJlg!NbD6_2E%eno>H2j4$y5U;5#})Akvp9|gr%b4;rXXfKv3v2q@Tm1}~@ zsDEf&$4H1v1PpQqlT__!t`C&_edb8X5KOXs=kFgvVe;ep?-0NO?63 zdyQL_$#Y2O6Nz>s@+y~Vozda<890<9)l|;N;J)6cK0hpcSeTQ7#~qik4PT4M>hZ11 z-6S`Yg>qVY)9!R|QD^ovtdX-v5aD;4jUJw2=zkw8FrCHw!(2kYJ3$8K+!@+T9U5KY zwUgPz?R&r`EMS4g3zmTg7~apS6KxOOK5S)SPO|~#=$o|FcLF%QHG7mLQ`*|@Z*Ih% zM@7auuH5gKGIL#t`S2B+s)f*Aex+nRXhoyOgi>Gcp7zCH+&l#@6U+!fQeOv5w-*|& z#3di5onl$|FK32Dm!y`rxiBrRx=g=79bxO}@3ck&Fm zerAhn=t~XTXV?d6zXDHzx^BlF=Cu}i3M*u= zg?~Vu)}cL-!pV}d0jK^a1pMF5)d?sv39IVMByFpT+l??$m)6snGs6(ogkai@N1-gB zn6#TPi9}!dfHxZqbj4;(e#AP0*B+;5*}Ox7ucbZt4*F;}IP~o#W_41Ry{9yPz^T%@nFu1Jv%*;lNsu7 z8z#`#Rj9U$QP@%D@=`S2uMf{dpQA_2y($;NSJS_H<|;n|1Thh5l__GU;*NyK0K*dYvi!EKWN*;J|ks5@2ZH+nD@% zZ*_}}m~r-UP%?{f`3_to*5vT=DVHMO=PhJ4_pswM-!FuubwM@8!x=i+&7x zk&xN$yM>11=l{ zoSRiNUD$*E90AC)rE(P{b!a(cGv?f%U$bWQd36L$&)`N))w zl;;vFW^_-a>Kps1*|;O=5pnT&A69x*O1nmOyVp;tOWrd$Y)D*-f~dkW(kYz%rtY1@ zEG!1z-1xs={U~3(AKrHy7U^wg9!;5a%*h!F5sLDc05L2Y^uub<(G}PPDdF}81T$>j z5(dLqs`zM2MAN=lBzmDARanc6^+$Tzj5ql+orBDLqHh#H`?Hqe1It3=yQi-)6iLG3 z|7e1Nc;oLvJ@sCG3f!oB9^zD9xiFcD{J_OtPU0$aag}e+Ttc}g}m*XSFI^e$%8fWt*2t3^Xa$u*7UKDEZm-KGq6^5gc=ajKJlq8cBjQ870t9U zR{K6%`GOA&RVJM)6EkvW+>FunazlY1DmAq{mm@zIE*mkN8w903a*wijildA*&dK@a zRkb^g#0r6a>~}1aBBb~DbO{@;Z!DjS+sA^jOI`COTUYgQPL@;7P7x z$g^tGdFMPCcXB)zmnNF~$9+mAJ9+6^tnO~zFt_xz?p;REFTFYoq^dR@Uh^>pH6_*5X3gIo2#yI`exwuL+wVIYLi0_0g>2`Ma6K$^a zX0_$>kszPqX2YrJ!hI%JC7RH*w0JYBjxs%|>pW^9;F&<0N7qP$90FrGpjx_W;c~@s zKJhI|w)H&@LojjqzLs0mq5VGyi~3^7Y~*t@=-N;&aJ;haRTjT(mFF!dqK-K|6Vs5*-UOKyhk&*8*hFPw0 zC6`#noy;A(!a)|niyD8ghBHLg)&69@YL>)ZZh)c69Bj-`w=y%=Y2=$So88b$8uKKM z7e5iX5UCiuaNTdyyGFco{;!X9S#m4R*}rKk8dg!Qo1Iai9HvVuDm;zBTrK1jmrI`gJ!YuO*zM-5X|{bz&c9qMeox~ImloSw*0I6w(`;sO1~uix?1vGyCx}cB z`<$}4mg@F>-NDU!7Na_hnP(Ce5_iSu4=vjJ99ClWp#vbuLtnCxA}%Q zco)6@P$h7=yg~%m0i5Z!<=3pJp|7WRJslW4cKrM!c*F^Ua{K&V|7Oka?!f@nj2}Bk z5+S_dmV7DEtCXTul9;-s-fvfT@G}N3A)NL4g)hd>RuSCVOndmJ5A}rd@mT+Q$NCR~ z^$!}*1x7E(ZZlg4{K!_x{m@y6Q8PMlH{zWfRDMaT>w zXaOL|BlZEY8|0Xc9*uLA}Kq=BET%SGC|dDy$? zLO$0IBcxtZrXS^j7Krt+OO8p91IK2%0q^987Pm%`mJ*%8mHQe9$VT4cSclDLU5n9@ z%$4h4X^Gh`Jc_bz%}7sNmB8z0xrvL?OmY&e@=hq^6qSUlc; zr%X3QZ5@%Wm5diW?E|TMJ}K~3fN62pwd=P6$jRH8%ORwAb9?X(kAxDzYwIqJ<94i& z_4@(Y_tL8I?{p7gLkNiHIFqL>aW8){TczKjR zoUCSr(Q>rPihN#;NE!Kxmw?Mvwx@nRvsU=KmRMcbTk83p((DJgQUgxjlALyn&<_i) zh=|IO;vl@_0I@zF_i3C7Yq-e?+I6Z>E|<3o^rW+v(7~&`**|oCM1jZ@+m-^=sj9lL zA)1oYeDq%>^?~cxdKRJv%WjDo+Gt?6rcopPrnYjX8F-{~O+J>wr6!FSgPnz@wpihV zpJ?qBS0hn3$VLrhsktK7#L$H(XkM}?ZIUR7XA&=ul%r2S)_Ne`lD{q&HW(Gq(wH8V zRxfWx6z7fgFvjSuTJKGLN71FI>YSfL<(g&Ddpafc;zBO(QOD-zpR1| zy1*RHopd&Ge2$kX%jm6i${)jpJ*13U_H@%6Vb-hiFWztb&uXwk&tWDLWONl(YTRQ2M+E)uJMuzCs zU1Ypb77h;l=$Zm$*^CO`Z|hI*p6KGx0UmxInl{;QdB188j#8F$|6Ei*ilb_>z#R5C zwL3@%YoOFQzV114YwY^=;?VmZHTu>la9hX4 zzM@bF@o;1@`ddIMqqy5x@6hKyA|zR}+&$%vP}z3`n8wsg5`G2L*kkZ!RdMA_HB2sE zy@CdVh1=uIFkFnrq@ooFeNn4C0Smg1p6uja8FPKQ*G9u-$lGi~-Bb{*%6LHz`)qJdjinCIz2v)aZTKJod0SN9 zHbjXYNUfWGMH`wDMbdR~&qXBJEpu>!b#bzGvbpTH2fJIT%m-d;`=Iyh<9+Cp#r{r! zJ@dh7_h9Yt<}w!yxCYgJ5P$iYi3f+-UGDyDl`Txvjh9dc{Pc_5>DrF#V*!U)+TWv} zsXWS1iJVbti_sn{=-tt%McFO6&+pLDvXAz>pY#jiH5s}=BkGI9zd^VFe|HYE^tUc5 zw?GRSGvX+isFD;7lY1a|B${cMBSM~87#EX-2W%&6<3?nvo8YbjxoZ zV~Hszlrgxv%4j-w6mWh1;vEnXMWhCih}cjFDRneI0HO0t-<=+@u&Ct78myGHk%R|f zJuy^_qJj+ejmQ+U;<|R267x*hgdPU;fkBK8!9v$Fo9e`*JgMp|*)M1>U`#&QwOuPC zX^+u^FL9XU9xJfE(C@|t?JrO@aTYetBik>6JAc!Zr;_{(@ z3F~in*4`egmO1uk@dfoxxQ{8vF+wI5heFWTc}S=TKKkZgUwXphok64mc!X~$ivkjS zd+o=qVxF7gI6pRz<{6oVT^us@PFZS~x^CU&bpCd(lsA0){K)p%!@S+MMUrMxL@jKi zquE$0xbblID#Z~&3$#9~dx{p}m}KJ)o4zEK{sv}|YiRR9n!sIurgdOqRsW=a;*hD> zEAD?^zHPA5(rVZzo231AzwCh<9tv}6>>o!=-v(jHs$fL=#R#^A|XCM8aNH(*t>#4M0ubjaKn5=wLPJHmIDctP0f+~cP=3J(A z5|1+3h&>r1hzui}C~I2tY|kE+CERev(qy#xS)%buuj~OhtH%kN*;i2X`-Ovm=tT>QYE6|Bh9 zJA9L9%;DA4`o%D`=)}Lb=EJ>5OE{}LIOB+Jo8x>@J(84_lVX3N>l6>2<6wf(;rG7B zq&3dIAg5Bny2eQ*@=&;U#LL1mb05zc0;*DC<@{aeQ$_$&YOIcOZV{p_F=B-|HOW61 zFJkk^2;o78Y878fS?5r;{S8%2pf^21M~SbG>O+! zA{Cw5MCG|KDfT^tP68iX!l5%X7}Pa0H-^_yhkza@p%S|p9p>%F`&1TXk;{1XZ5Qs< z{<$*{fqw&(|AA!|6mUPmKmzY?P2B0s*oS==4XuTf!{WZ9VW)7Y8qB?(m}Aao$%Bn} zMze_ObE$Ur4{jqP+L;;OtEr69v$5Sw|4@z}jEvWnj~Kctd(Zw+1mK^o{t4)FJ&J1@ zCv8T3=I@bROozJA!%lo6Q~bPHxS&rl*`Q!q;&UrA3Mrh`VW$jhs0BG#tD571iw%F? z(-HX(G2o!vc5{E9;|DL?-0m1uMY=#Eg=47m9X!Mt6DS|Ypsg88FkT|;%LDVxs2(^% zG~r8Xn-*46nJ*66p=Dyo$i5Dg@^ADk0hu2(fidIURfQlA$;|8*hgUL=-%62E-=3go zjq}4d0de=@3 z%aT?!{d|2Ss7UVmu)q}Stp_&^U|vj^-G*ZpgdIujg|OBR#Cyx{ovqfc4D_>UiplU{ zwsU9BpeZawC1CJYfxpT-Zd$=lEglAzm_+P%IT_M=dsePWN$DZPV^R7~$hlWmIYL`j z8(SMJi|s}6Fh*HS!7G0TOl@s-G=E*~cdVRWu`2SRCTfARC#59O7 zsj5l-6QHo%C&QJ5q;|NKyEGGDso6Uq56FCh2UF;5u(Yr@rl<)z#3@W{@c{ z3!vb+KyRb2dMWvP?&GmInKs5bcSSeXBb^aWs>F}e+zmL)_MXW2 zQx?z;FkLnMnC+zsa?et2+?lY@s2c(Cp+&>HGkqmturE@SNI zh;+JOv9F1j`a@QynEre(-dTh_f&-5kQ0~{}Z-vtNj#o+q_Upr0v$*#hLj{&VR5L}R zn5SdfThWbH7V12whYQcd4mKXOSvy+2CMbe+EuS!kh|z95`~NKk-~A8nLuUR@niG$;(Z&z6Pv83Mu3=fS&aIrVeO=bctSDvIhAxA)>o&44 z9~YDMsgITPxbCEzl0&%Mr{CV$1Smv%S-cWk4Ti1yMr@3wn1;axr)@&Cl1>?^cIF++J5b4TC#mj7E(b5V^1upB`4NmDNduFEHI8|Xfk1a7!}#5p7^lJTNZ$-iExq6L02$C@y6UA)g; zFC3j)Jd*A;4L@B)kS0fpFGf~lFySij#EZIaY=0<`mcr2$5R!f*H@L4`59?F{^yA| zI`{sGlb*e}k%v5c%z-85Nepa0+cNosGXyM>v?@WWXlTm*AzNgS3A5HGAO_@}IX%B+ zG*Lv3wZYDlCQ6sMUk&UEt`1NUL(A#7cj@7v77x}8x_ zK$yUKo;Gj{s2`_?4PgXE(7-5eu?zqCJ;1-Ue@1$Qk0|2jJ&(oec;%($p=};(&e2f) z7PMWNqQd#`B=YRiAL%6@X;;B8gAvxfeDH}5y8|#lxAZzyD+hvFBu)f45cd|KDYStlUNV@m9$OePsojSPJKg`IDc%S zv=U8mRxojfObZI5_Q#;2`tEf0aJGUj0U>7!KnaSw7Qt@#6xLT%Nh5R7?R3E#(g9FD zRWaI~fF2OAcByIe2mItqVMvb9d;g2ZV?>~_i`%zax{4v#E|G^{>`Ys zil_QFQ_rx3{sP@s7a-d)Z~s=8n#@b3XMp(z8a$ zY4`<)I=%{323fGmpt^QK7 zvZLu!*+bpB<*20AiVCQxpgluk?lC?do^4xs9Xdzk2aC~}IkRtk!eipAoU zq*xu+_zU$?u93!DzoJ9Ai7++&dIRxK$Rx!egT%0BRsT*G$o=|jg0k_};nsa>&E@)1 z2}-8J9`fiwU(cIwU&BC@RvyNdxLmHMN1JQx)kf(jD0T3^SrdRrR52Lo>*V|NTii}J z8-GveoG91RVRi2}i;lW5-?J>X3JK}CMfVodQcTd~%<;A5}Wy`9$?$S+Xt6sp@&RW(A^SvjUE0h#h6uk-RkpEE=hzb)qen!?iQC*Sz z;h3~m1hag(x_#JQ$IyYrk73}nLLAq~|92EbrxayWUE)l7hmwDNTsn66tMhl-#Y;{K zo?Myyq|6=<6Xnq=Z}t%O2Xw}GZkv0aTi4myO2gHlcd#OUnvSS`Z+X}G=zg1Vy3+$U_-5; z!M$_(i{~LeK5?vQf^m1U{Qj4oQk4q9N+Jagj%1lCk?smIVI9A$#&IL$)pE&o$inof zMk%5b<3m+3cezpNP^VxGH~(=ZdQ9vAjsCHw;;le*vkr(M$F{h)_1qHDTO(n6s>!WV zK2>@%tMDy9+Iv3rcxLTb>~LP*@P&`{9A{*kA}8YQNh4kT{Z-)It}(ehj;_Ruv-gUs z+q&3Kq(=SIom%X{BN$IQFWy#b=^a@c{8Q!JKV(V43F9<}?|5B1ZlJSspqz*)*#DUV zhD&JEZ9dJ^zy#&-{)2(e`lAn~4R+v>rShG!A={e2gx>I-o52lxPC$p+u-dLN@$Mgym>Ja^miMcPkUGY%uAnV&z{$q`? z8_M<;4=bIutPP!{{f_&8CJ4AeTwWr4=9M6+2I(9=eZ-5m(?=@_x0f%W9C3OZcV|YJ zGVx6G!I#UAjr0^DRWa$0FilPrS4Ji1q~slr#E5@J){P$fZMGmBjCRFwgH;+Qmj*FO z@+qJClxu=D;##(`>Mwfq>4{#$bnvc8?(WM-Av(u?PvBOuGSOSsR)bluTnHaqUzoY8 zc5M8hQlgwmO9Ig31@Y5E{<|Qsnah>aB$Bbb@{X+;!jBdj5#i&75_6 zBQB+5)eWM!_t2DgHJ=4R#KDrHrDM8cPPExkNK4agFro9wn$9Br;C2MV=#o#}T2D(B z)v35u{Yl{&gUY@A_Hi-(?fGQ@>UGksUrR*cXQ6eD*myk6zzXlRw z3{3Q~D6YW?CeAg+GJ#uxgZla;{bCxaY#-H|U&~TB(;3Smx|%cEo+p{PWE3jsxBlLGmg8iynY!Qh3A?;wu_caf_v!@47c0Q_bXgGBBsL zuG2h*&!e8L$GQ<|G&Fp7`@phhyJa;PzG3-Lz!GA2#FqBE4E!`Y+ywRVbeXEb0Hl#J zL24yM_!wY467v}e0Xt-6ZfG4rcmxnt?;mdQPCZd|lu0*762V9Z@KM++Vdk(>>JWD} zWsBpZ#NA&(yF?uL`JtuMpmvX6tRY8DECGKLZ@MZhLBj^47(eK88ifv>sQF4wggac) z$-VMK!CaQO*=qH(#TQSZ!S4*1c(4`3Fy!+U(v232bu%w|CtC!SgcU