Background color for Macao's flag is not correct

[kylooh]

Flag from circle-flags
https://github.com/HatScripts/circle-flags/blob/gh-pages/flags/mo.svg

which's background color is #41632d

Flag from wikimedia
https://upload.wikimedia.org/wikipedia/commons/6/63/Flag_of_Macau.svg

which using #146958

[kylooh]

I made a PR to fix the color
#118

[shankarsivarajan]

See the "color palette" section in the README.

[kylooh]

See the "color palette" section in the README.

thanks for your replying. Yes, you are right, but the color of green is too yellow for this Macao flag, is that possible to add Macao's green as a special case, the Macao green is more close to blue.