schemeClr

schemeClr represents a color from a theme. The color changes if theme bindings change. For example, specifying:

<a:schemeClr val="lt1">

binds the color to be Light 1 color of the current theme. The possible values are:

bg1

semantic background color

bg1	semantic background color
tx1	semantic text color
bg2	semantic additional background color
tx2	semantic additional text color
accent1	extra scheme color 1
accent2	extra scheme color 2
accent3	extra scheme color 3
accent4	extra scheme color 4
accent5	extra scheme color 5
accent6	extra scheme color 6
hlink	hyperlink color
folHlink	followed hyperlink color
dk1	main dark color 1
lt1	Main light color 1

phClr

a color used in theme definitions which means "use the color of the style"

dk2

main dark color 2

lt2

main light color 2