Editing TRS-80 Color Computer (section)

====Bitmap modes====
Bitmap display modes are divided into two categories: ''resolution'' and ''color''.

In resolution modes, each pixel is addressable as either on or off. There are two color sets available: black dots on a green background with a green border, and white dots on a black background with a white border.

In color modes, each pixel uses two bits to select one of four colors, with the overall colors determined by the colorset: 
* a green border with the colors green, yellow, red, and blue; 
* a white border with the colors white, cyan, magenta, and orange.

Resolution graphics store 8 pixels per byte and are available in 128×64, 128×96, 128×192, and 256×192 modes. Color graphics have 4 pixels per byte and are available in 64×64, 128×64, 128×96, and 128×192. The maximum size of a bitmap screen is 6144.