Created Layer 1 (markdown)

Layer-1.md

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+> [Color scheme](https://github.com/RadRussianRus/sddm-slice/wiki/Color-schemes) layers: **Layer 1** • Layer 2 • Layer 3
+
+**Layer 1** has options, required by theme. That options alone can define whole color scheme.
+
+### `color_bg`
+Sets background color. It will be used in cases when image in `background` option is not set, not fills entire screen (like in `bg_mode=none`) or image has transparent background.
+
+* **Default**: `#222222`.
+
+### `color_main`
+Main color. It will be used in highlighted buttons, text, backgrounds (with added transparency), etc.
+
+* **Default**: `#dddddd`.
+
+### `color_dimmed`
+Dimmed main color. It will be used in buttons, sub text, etc.
+
+* **Default**: `#888888`.
+
+### `color_contrast`
+Color to contrast both main and dimmed colors. Used in button text.
+
+* **Default**: `#1f1f1f`.