old school game background "palette"

[rich2005]

..get it. Gimp has a steep learning curve.

Quote:Understood almost everything except step 4, what's the use of that smaller window and clipboard and that pattern-filling part..

For pixel art most probably you will need to make your own patterns. The stock ones will be too large.

Some screenshots -
https://i.imgur.com/K2PMNbH.jpg
Made a tiny 4x4 pixel image note 9000% zoom (1) Used a 1 pix size square brush and the pencil tool (2) Edit -> Copy and that becomes the clipboard pattern (3)

https://i.imgur.com/u658dwM.jpg
In your drawing, make a selection (4) Use the bucket fill tool (5) and Pattern fill with clipboard (6) to fill the selection.

Quote: did you draw those blue layers manually with pencil tool (it takes ages) and how to get em so lined

You should be using a small-ish canvas, quick to fill.
https://i.imgur.com/EoE4XIg.jpg
Adjust the brush size to paint large areas (1) Pencil tool with a small spacing (2) and to paint in straight lines, click-at-beginning, hold shift key down, click-at-end (3)

https://i.imgur.com/A2qluVb.jpg
Paint in details, use a tiny brush size (4) big spacing (5) same procedure for drawing straight lines (6)