GUI, although images don't seem to render

resources/EngineResources/GuiShaders/gui_frag.glsl

@@ -0,0 +1,12 @@
+#version 450
+
+layout (location = 0) in vec2 inTextCoords;
+layout (location = 1) in vec4 inColor;
+
+layout (binding = 0) uniform sampler2D fontsSampler;
+
+layout (location = 0) out vec4 outFragColor;
+
+void main() {
+    outFragColor = inColor * texture(fontsSampler, inTextCoords);
+}