[design] improve preset themes

Author: zombieFox

src/js/state.js

@@ -415,12 +415,12 @@ var state = (function(){
 hsl: {
 h: 217,
 s: 46,
-l: 64
+l: 60
 },
 rgb: {
-r: 120,
-g: 153,
-b: 205
+r: 106,
+g: 142,
+b: 199
 }
 },
 accent: {
@@ -455,14 +455,14 @@ var state = (function(){
 snowblue: {
 color: {
 hsl: {
-h: 197,
-s: 25,
-l: 46
+h: 217,
+s: 46,
+l: 58
 },
 rgb: {
-r: 87,
-g: 130,
-b: 146
+r: 98,
+g: 136,
+b: 197
 }
 },
 accent: {
@@ -520,12 +520,12 @@ var state = (function(){
 hsl: {
 h: 0,
 s: 69,
-l: 66
+l: 62
 },
 rgb: {
-r: 228,
-g: 108,
-b: 108
+r: 224,
+g: 91,
+b: 91
 }
 },
 accent: {