Thanks! The best solution from a newbie!
Lol but of course I thank you all of you. You guys cared about my problem.
OK I think I ll go with Mattrizzle's solution. Correct me if Im wrong man.
I double click on a color to open swatches tab. I see that that color table doesnt have enough your colors. So I switch to HSV tab (I dont even know what this is I just newbie to tilemolester). Then move the cross to area that I think its same color as yours, click OK then I have 1 color. Do that 16 times, I have full palette (that I think its ok).
Now, Im trying to edit/draw new things. Lets take a look at the font in 1600% zoom.http://i.imgur.com/KrT5JAD.jpg
Do you think those chars...hmm.... have a "rule" about color? I mean, the letters are white ok? But their shadow, somewhere is strong black, somewhere is less strong black, somewhere is weak black,... Do they have a color rule? Or I should dont care about it, and its all about my draw skill? Beside, my work is almost copy-paste, those things I have to draw are just little things. Example: ố, I can copy-paste ô and just draw a little more.
Im doing now but if you have any advice please let me know.
UPDATE: Those things I have from copy-paste are very good. Trying draw new things that doesnt exist in the font.
UPDATE2: Good. I can handle whole the font now. Thank you very much.