D 2019-08-21T15:55:20.313 J icomment Using\sjavascript,\schange\sthe\sbackground\sof\s\sto\shsl(N,50%,97%)\swhere\sN\sis\sdetermined\saccording\sto\sthis\salgorithm:\r\n\r\n
(define\s(seasonal-hue\sday-of-year)\r\n\s\s(define\st1\s(if\s(>\sday-of-year\s359)\s0\sday-of-year))\r\n\s\s(define\st2\s(-\s240\st1))\r\n\s\s(if\s(>\s0\st2)\s(+\s360\st2)\st2))\r\n
\r\n\r\nIn\sthis\sway,\sJan\s1\soccurs\sin\sthe\sblue\sarea\sof\sthe\sHSL\scolor\swheel,\sand\sthe\svalue\smoves\scounterclockwise\sthrough\sgreen,\syellow,\sorange,\sred,\smagenta,\spurple\sas\sthe\syear\sprogresses.\r\n\r\nIn\sthe\ssame\sscript,\sset\ssome\stext\sin\sa\scorner\ssomewhere\sto\smatch\sone\sof\sthe\s72\sJapanese\smicroseasons:\r\n\r\n\s\s\s\s\s\s立春\sRisshun\s(Beginning\sof\sspring)\s\s\s\s\s\sFebruary\s4–8\s\s東風解凍\s\sHarukaze\skōri\so\stoku\s\sEast\swind\smelts\sthe\sice\s\s\s\s\s\sFebruary\s9–13\s\s黄鶯睍睆\s\sKōō\skenkan\ssu\s\sBush\swarblers\sstart\ssinging\sin\sthe\smountains\s\s\s\s\s\sFebruary\s14–18\s\s魚上氷\s\sUo\skōri\so\sizuru\s\sFish\semerge\sfrom\sthe\sice\s\s\s\s\s\s雨水\sUsui\s(Rainwater)\s\s\s\s\s\sFebruary\s19–23\s\s土脉潤起\s\sTsuchi\sno\sshō\suruoi\sokoru\s\sRain\smoistens\sthe\ssoil\s\s\s\s\s\sFebruary\s24–28\s\s霞始靆\s\sKasumi\shajimete\stanabiku\s\sMist\sstarts\sto\slinger\s\s\s\s\s\sMarch\s1–5\s\s草木萌動\s\sSōmoku\smebae\sizuru\s\sGrass\ssprouts,\strees\sbud\s\s\s\s\s\s啓蟄\sKeichitsu\s(Insects\sawaken)\s\s\s\s\s\sMarch\s6–10\s\s蟄虫啓戸\s\sSugomori\smushito\so\shiraku\s\sHibernating\sinsects\ssurface\s\s\s\s\s\sMarch\s11–15\s\s桃始笑\s\sMomo\shajimete\ssaku\s\sFirst\speach\sblossoms\s\s\s\s\s\sMarch\s16–20\s\s菜虫化蝶\s\sNamushi\schō\sto\snaru\s\sCaterpillars\sbecome\sbutterflies\s\s\s\s\s\s春分\sShunbun\s(Spring\sequinox)\s\s\s\s\s\sMarch\s21–25\s\s雀始巣\s\sSuzume\shajimete\ssukū\s\sSparrows\sstart\sto\snest\s\s\s\s\s\sMarch\s26–30\s\s櫻始開\s\sSakura\shajimete\ssaku\s\sFirst\scherry\sblossoms\s\s\s\s\s\sMarch\s31–April\s4\s\s雷乃発声\s\sKaminari\ssunawachi\skoe\so\shassu\s\sDistant\sthunder\s\s\s\s\s\s清明\sSeimei\s(Pure\sand\sclear)\s\s\s\s\s\sApril\s5–9\s\s玄鳥至\s\sTsubame\skitaru\s\sSwallows\sreturn\s\s\s\s\s\sApril\s10–14\s\s鴻雁北\s\sKōgan\skaeru\s\sWild\sgeese\sfly\snorth\s\s\s\s\s\sApril\s15–19\s\s虹始見\s\sNiji\shajimete\sarawaru\s\sFirst\srainbows\s\s\s\s\s\s穀雨\sKokuu\s(Grain\srains)\s\s\s\s\s\sApril\s20–24\s\s葭始生\s\sAshi\shajimete\sshōzu\s\sFirst\sreeds\ssprout\s\s\s\s\s\sApril\s25–29\s\s霜止出苗\s\sShimo\syamite\snae\sizuru\s\sLast\sfrost,\srice\sseedlings\sgrow\s\s\s\s\s\sApril\s30–May\s4\s\s牡丹華\s\sBotan\shana\ssaku\s\sPeonies\sbloom\s\s\s\s\s\s立夏\sRikka\s(Beginning\sof\ssummer)\s\s\s\s\s\sMay\s5–9\s\s蛙始鳴\s\sKawazu\shajimete\snaku\s\sFrogs\sstart\ssinging\s\s\s\s\s\sMay\s10–14\s\s蚯蚓出\s\sMimizu\sizuru\s\sWorms\ssurface\s\s\s\s\s\sMay\s15–20\s\s竹笋生\s\sTakenoko\sshōzu\s\sBamboo\sshoots\ssprout\s\s\s\s\s\s小満\sShōman\s(Lesser\sripening)\s\s\s\s\s\sMay\s21–25\s\s蚕起食桑\s\sKaiko\sokite\skuwa\so\shamu\s\sSilkworms\sstart\sfeasting\son\smulberry\sleaves\s\s\s\s\s\sMay\s26–30\s\s紅花栄\s\sBenibana\ssakau\s\sSafflowers\sbloom\s\s\s\s\s\sMay\s31–June\s5\s\s麦秋至\s\sMugi\sno\stoki\sitaru\s\sWheat\sripens\sand\sis\sharvested\s\s\s\s\s\s芒種\sBōshu\s(Grain\sbeards\sand\sseeds)\s\s\s\s\s\sJune\s6–10\s\s蟷螂生\s\sKamakiri\sshōzu\s\sPraying\smantises\shatch\s\s\s\s\s\sJune\s11–15\s\s腐草為螢\s\sKusaretaru\skusa\shotaru\sto\snaru\s\sRotten\sgrass\sbecomes\sfireflies\s\s\s\s\s\sJune\s16–20\s\s梅子黄\s\sUme\sno\smi\skibamu\s\sPlums\sturn\syellow\s\s\s\s\s\s夏至\sGeshi\s(Summer\ssolstice)\s\s\s\s\s\sJune\s21–26\s\s乃東枯\s\sNatsukarekusa\skaruru\s\sSelf-heal\swithers\s\s\s\s\s\sJune\s27–July\s1\s\s菖蒲華\s\sAyame\shana\ssaku\s\sIrises\sbloom\s\s\s\s\s\sJuly\s2–6\s\s半夏生\s\sHange\sshōzu\s\sCrow-dipper\ssprouts\s\s\s\s\s\s小暑\sShōsho\s(Lesser\sheat)\s\s\s\s\s\sJuly\s7–11\s\s温風至\s\sAtsukaze\sitaru\s\sWarm\swinds\sblow\s\s\s\s\s\sJuly\s12–16\s\s蓮始開\s\sHasu\shajimete\shiraku\s\sFirst\slotus\sblossoms\s\s\s\s\s\sJuly\s17–22\s\s鷹乃学習\s\sTaka\ssunawachi\swaza\so\snarau\s\sHawks\slearn\sto\sfly\s\s\s\s\s\s大暑\sTaisho\s(Greater\sheat)\s\s\s\s\s\sJuly\s23–28\s\s桐始結花\s\sKiri\shajimete\shana\so\smusubu\s\sPaulownia\strees\sproduce\sseeds\s\s\s\s\s\sJuly\s29–August\s2\s\s土潤溽暑\s\sTsuchi\suruōte\smushi\satsushi\s\sEarth\sis\sdamp,\sair\sis\shumid\s\s\s\s\s\sAugust\s3–7\s\s大雨時行\s\sTaiu\stokidoki\sfuru\s\sGreat\srains\ssometimes\sfall\s\s\s\s\s\s立秋\sRisshū\s(Beginning\sof\sautumn)\s\s\s\s\s\sAugust\s8–12\s\s涼風至\s\sSuzukaze\sitaru\s\sCool\swinds\sblow\s\s\s\s\s\sAugust\s13–17\s\s寒蝉鳴\s\sHigurashi\snaku\s\sEvening\scicadas\ssing\s\s\s\s\s\sAugust\s18–22\s\s蒙霧升降\s\sFukaki\skiri\smatō\s\sThick\sfog\sdescends\s\s\s\s\s\s処暑\sShosho\s(Manageable\sheat)\s\s\s\s\s\sAugust\s23–27\s\s綿柎開\s\sWata\sno\shana\sshibe\shiraku\s\sCotton\sflowers\sbloom\s\s\s\s\s\sAugust\s28–September\s1\s\s天地始粛\s\sTenchi\shajimete\ssamushi\s\sHeat\sstarts\sto\sdie\sdown\s\s\s\s\s\sSeptember\s2–7\s\s禾乃登\s\sKokumono\ssunawachi\sminoru\s\sRice\sripens\s\s\s\s\s\s白露\sHakuro\s(White\sdew)\s\s\s\s\s\sSeptember\s8–12\s\s草露白\s\sKusa\sno\stsuyu\sshiroshi\s\sDew\sglistens\swhite\son\sgrass\s\s\s\s\s\sSeptember\s13–17\s\s鶺鴒鳴\s\sSekirei\snaku\s\sWagtails\ssing\s\s\s\s\s\sSeptember\s18–22\s\s玄鳥去\s\sTsubame\ssaru\s\sSwallows\sleave\s\s\s\s\s\s秋分\sShūbun\s(Autumn\sequinox)\s\s\s\s\s\sSeptember\s23–27\s\s雷乃収声\s\sKaminari\ssunawachi\skoe\so\sosamu\s\sThunder\sceases\s\s\s\s\s\sSeptember\s28–October\s2\s\s蟄虫坏戸\s\sMushi\skakurete\sto\so\sfusagu\s\sInsects\shole\sup\sunderground\s\s\s\s\s\sOctober\s3–7\s\s水始涸\s\sMizu\shajimete\skaruru\s\sFarmers\sdrain\sfields\s\s\s\s\s\s寒露\sKanro\s(Cold\sdew)\s\s\s\s\s\sOctober\s8–12\s\s鴻雁来\s\sKōgan\skitaru\s\sWild\sgeese\sreturn\s\s\s\s\s\sOctober\s13–17\s\s菊花開\s\sKiku\sno\shana\shiraku\s\sChrysanthemums\sbloom\s\s\s\s\s\sOctober\s18–22\s\s蟋蟀在戸\s\sKirigirisu\sto\sni\sari\s\sCrickets\schirp\saround\sthe\sdoor\s\s\s\s\s\s霜降\sSōkō\s(Frost\sfalls)\s\s\s\s\s\sOctober\s23–27\s\s霜始降\s\sShimo\shajimete\sfuru\s\sFirst\sfrost\s\s\s\s\s\sOctober\s28–November\s1\s\s霎時施\s\sKosame\stokidoki\sfuru\s\sLight\srains\ssometimes\sfall\s\s\s\s\s\sNovember\s2–6\s\s楓蔦黄\s\sMomiji\stsuta\skibamu\s\sMaple\sleaves\sand\sivy\sturn\syellow\s\s\s\s\s\s立冬\sRittō\s(Beginning\sof\swinter)\s\s\s\s\s\sNovember\s7–11\s\s山茶始開\s\sTsubaki\shajimete\shiraku\s\sCamellias\sbloom\s\s\s\s\s\sNovember\s12–16\s\s地始凍\s\sChi\shajimete\skōru\s\sLand\sstarts\sto\sfreeze\s\s\s\s\s\sNovember\s17–21\s\s金盞香\s\sKinsenka\ssaku\s\sDaffodils\sbloom\s\s\s\s\s\s小雪\sShōsetsu\s(Lesser\ssnow)\s\s\s\s\s\sNovember\s22–26\s\s虹蔵不見\s\sNiji\skakurete\smiezu\s\sRainbows\shide\s\s\s\s\s\sNovember\s27–December\s1\s\s朔風払葉\s\sKitakaze\skonoha\so\sharau\s\sNorth\swind\sblows\sthe\sleaves\sfrom\sthe\strees\s\s\s\s\s\sDecember\s2–6\s\s橘始黄\s\sTachibana\shajimete\skibamu\s\sTachibana\scitrus\stree\sleaves\sstart\sto\sturn\syellow\s\s\s\s\s\s大雪\sTaisetsu\s(Greater\ssnow)\s\s\s\s\s\sDecember\s7–11\s\s閉塞成冬\s\sSora\ssamuku\sfuyu\sto\snaru\s\sCold\ssets\sin,\swinter\sbegins\s\s\s\s\s\sDecember\s12–16\s\s熊蟄穴\s\sKuma\sana\sni\skomoru\s\sBears\sstart\shibernating\sin\stheir\sdens\s\s\s\s\s\sDecember\s17–21\s\s鱖魚群\s\sSake\sno\suo\smuragaru\s\sSalmons\sgather\sand\sswim\supstream\s\s\s\s\s\s冬至\sTōji\s(Winter\ssolstice)\s\s\s\s\s\sDecember\s22–26\s\s乃東生\s\sNatsukarekusa\sshōzu\s\sSelf-heal\ssprouts\s\s\s\s\s\sDecember\s27–31\s\s麋角解\s\sSawashika\sno\stsuno\sotsuru\s\sDeer\sshed\santlers\s\s\s\s\s\sJanuary\s1–4\s\s雪下出麦\s\sYuki\swatarite\smugi\snobiru\s\sWheat\ssprouts\sunder\ssnow\s\s\s\s\s\s小寒\sShōkan\s(Lesser\scold)\s\s\s\s\s\sJanuary\s5–9\s\s芹乃栄\s\sSeri\ssunawachi\ssakau\s\sParsley\sflourishes\s\s\s\s\s\sJanuary\s10–14\s\s水泉動\s\sShimizu\satataka\so\sfukumu\s\sSprings\sthaw\s\s\s\s\s\sJanuary\s15–19\s\s雉始雊\s\sKiji\shajimete\snaku\s\sPheasants\sstart\sto\scall\s\s\s\s\s\s大寒\sDaikan\s(Greater\scold)\s\s\s\s\s\sJanuary\s20–24\s\s款冬華\s\sFuki\sno\shana\ssaku\s\sButterburs\sbud\s\s\s\s\s\sJanuary\s25–29\s\s水沢腹堅\s\sKiwamizu\skōri\stsumeru\s\sIce\sthickens\son\sstreams\s\s\s\s\s\sJanuary\s30–February\s3\s\s鶏始乳\s\sNiwatori\shajimete\stoya\sni\stsuku\s\sHens\sstart\slaying\seggs\s\s\s\s\s\s J login joel J mimetype text/x-fossil-wiki J private_contact 4b2de4f1f4efa3fb04e941986288754939670ffb J severity Important J status Open J title Subtle\schanges\sin\sappearance\sfor\sseasons J type Aesthetic\sImprovement K 2d425a8a8dff56aa21dc626c08de7b78dcfef15c U joel Z ac9e972abdf387a9b8a67483f0302c44