Added sRGB (gamma-correct) support for Images, Canvases, and the main screen.

love.graphics.newImage(path, “srgb”) creates a new Image whose texels are treated as being in the sRGB color space, so they are linearized when drawing/sampling from the image.

love.graphics.newCanvas(w, h, “srgb”) creates a new Canvas whose texels are treated as being in the sRGB color space, so drawing to the Canvas does a linear->sRGB conversion (but blends linearly), and sampling from it (drawing it or using it in a shader) converts from sRGB to linear space.

The "srgb" window flag does the same as Canvases for the main screen.

src/scripts/boot.lua

@@ -301,6 +301,7 @@ function love.init()
 			resizable = false,
 			centered = true,
 			highdpi = false,
+			srgb = false,
 		},
 		modules = {
 			event = true,
@@ -390,6 +391,7 @@ function love.init()
 			centered = c.window.centered,
 			display = c.window.display,
 			highdpi = c.window.highdpi,
+			srgb = c.window.srgb,
 		}), "Could not set window mode")
 		love.window.setTitle(c.window.title or c.title)
 		if c.window.icon then