Add initial token theming.

src/base/core/Color.cpp

@@ -9,6 +9,26 @@ Color::Color(unsigned char r, unsigned char g, unsigned char b, double a)
 
 }
 
+Color::Color(const std::string& hexString)
+{
+    if (hexString.size() < 7)
+    {
+        return;
+    }
+    if (hexString[0] != '#')
+    {
+        return;
+    }
+    mR = toDecimal(hexString.substr(1, 2));
+    mG = toDecimal(hexString.substr(3, 2));
+    mB = toDecimal(hexString.substr(5, 2));
+}
+
+unsigned char Color::toDecimal(const std::string& hex) const
+{
+    return static_cast<unsigned char>(std::stoul("0x" + hex, nullptr, 16));
+}
+
 std::unique_ptr<Color> Color::Create(unsigned char r, unsigned char g, unsigned char b, double a )
 {
     return std::make_unique<Color>(r, g, b, a);

src/base/core/Color.h

@@ -7,6 +7,8 @@
 class Color
 {
 public:
+
+    Color(const std::string& hexString);
     Color(unsigned char r = 0, unsigned char g = 0, unsigned char b = 0, double a = 1.0);
 
     static std::unique_ptr<Color> Create(unsigned char r, unsigned char g, unsigned char b, double a = 1.0);
@@ -37,6 +39,8 @@ public:
     }
 
 private:
+    unsigned char toDecimal(const std::string& hex) const;
+
     unsigned char mR{0};
     unsigned char mG{0};
     unsigned char mB{0};