This is the tool i use to make 16×16 tiles. Not the best but I like it because it’s my own. ;p
Some instructions :
Press PAUSE to switch between modes
Mode 1 : (drawing)
A – draw
B – hide cursor
Mode 2 : (choosing color)
A – choose selected color
UP – selection up
DOWN – selection down
Mode 3 : (options)
A – select option
LEFT – selection left
RIGHT – selection right
Some info :
X – clear the drawing
S – save the drawing
P – print selected color in a position
U – update (use it before leaving the program to save changes. Before saving too)
Enjoy.
Get LowRes Coder to use this program.