Sprite inventory, how best to implement?

Question

Java

Hello uv. Developers.
Tell me how best to implement the inventory of sprites. The appearance of the character will depend on gender / race / class and the level of a certain thing (sword / helmet / shoes, etc.). Sprites will be drawn in vector graphics.
I read somewhere about the gray tones of the sprite ...
The game is written in java, maybe there are some tools, or algorithms for example. Maybe there is something to read ...
And which package is better to take for the graphical interface of a 2d game? awt/swing?)

Answer 1

1. Try to look at materials on libgdx. As a use of a cross-platform engine. (pc/android/ios).
2. Gray tone sprite. Is it the alpha channel of the transparency?
3. AWT/Swing SDK for GUI development. You better google on the topic of game engines, or as an option, look at point 1.